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        • Validation
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      • SnowConvert
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        • What is a SnowConvert Project?
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        • Command Line Interface
          • Teradata
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          • Renaming feature
      • SnowConvert for Redshift (Preview)
        • How to install the tool
          • Windows
          • MacOS
        • How to update the tool
        • How to inquire about an access code
        • What is a SnowConvert for Redshift project?
          • Project creation
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    • Technical Documentation
      • Understanding Converted Code
        • EWIs
          • General
            • SSC-EWI-0001
            • SSC-EWI-0002
            • SSC-EWI-0003
            • SSC-EWI-0004
            • SSC-EWI-0005
            • SSC-EWI-0006
            • SSC-EWI-0007
            • SSC-EWI-0008
            • SSC-EWI-0009
            • SSC-EWI-0010
            • SSC-EWI-0011
            • SSC-EWI-0012
            • SSC-EWI-0013
            • SSC-EWI-0014
            • SSC-EWI-0015
            • SSC-EWI-0020
            • SSC-EWI-0021
            • SSC-EWI-0022
            • SSC-EWI-0023
            • SSC-EWI-0025
            • SSC-EWI-0026
            • SSC-EWI-0027
            • SSC-EWI-0028
            • SSC-EWI-0030
            • SSC-EWI-0031
            • SSC-EWI-0033
            • SSC-EWI-0034
            • SSC-EWI-0035
            • SSC-EWI-0036
            • SSC-EWI-0040
            • SSC-EWI-0041
            • SSC-EWI-0045
            • SSC-EWI-0046
            • SSC-EWI-0049
            • SSC-EWI-0052
            • SSC-EWI-0053
            • SSC-EWI-0054
            • SSC-EWI-0056
            • SSC-EWI-0058
            • SSC-EWI-0062
            • SSC-EWI-0064
            • SSC-EWI-0066
            • SSC-EWI-0067
            • SSC-EWI-0068
            • SSC-EWI-0073
            • SSC-EWI-0077
            • SSC-EWI-0080
            • SSC-EWI-0084
            • SSC-EWI-0086
            • SSC-EWI-0092
            • SSC-EWI-0094
            • SSC-EWI-0101
            • SSC-EWI-0102
            • SSC-EWI-0107
            • SSC-EWI-0108
            • SSC-EWI-0109
            • SSC-EWI-0110
          • Teradata
            • SSC-EWI-TD0001
            • SSC-EWI-TD0002
            • SSC-EWI-TD0003
            • SSC-EWI-TD0004
            • SSC-EWI-TD0005
            • SSC-EWI-TD0006
            • SSC-EWI-TD0008
            • SSC-EWI-TD0009
            • SSC-EWI-TD0010
            • SSC-EWI-TD0012
            • SSC-EWI-TD0017
            • SSC-EWI-TD0020
            • SSC-EWI-TD0023
            • SSC-EWI-TD0024
            • SSC-EWI-TD0025
            • SSC-EWI-TD0027
            • SSC-EWI-TD0029
            • SSC-EWI-TD0031
            • SSC-EWI-TD0034
            • SSC-EWI-TD0039
            • SSC-EWI-TD0040
            • SSC-EWI-TD0041
            • SSC-EWI-TD0046
            • SSC-EWI-TD0049
            • SSC-EWI-TD0051
            • SSC-EWI-TD0052
            • SSC-EWI-TD0053
            • SSC-EWI-TD0055
            • SSC-EWI-TD0057
            • SSC-EWI-TD0059
            • SSC-EWI-TD0060
            • SSC-EWI-TD0061
            • SSC-EWI-TD0063
            • SSC-EWI-TD0066
            • SSC-EWI-TD0068
            • SSC-EWI-TD0069
            • SSC-EWI-TD0070
            • SSC-EWI-TD0076
            • SSC-EWI-TD0077
            • SSC-EWI-TD0079
            • SSC-EWI-TD0082
            • SSC-EWI-TD0083
            • SSC-EWI-TD0087
            • SSC-EWI-TD0091
          • Oracle
            • SSC-EWI-OR0001
            • SSC-EWI-OR0002
            • SSC-EWI-OR0004
            • SSC-EWI-OR0005
            • SSC-EWI-OR0006
            • SSC-EWI-OR0007
            • SSC-EWI-OR0008
            • SSC-EWI-OR0009
            • SSC-EWI-OR0010
            • SSC-EWI-OR0011
            • SSC-EWI-OR0013
            • SSC-EWI-OR0014
            • SSC-EWI-OR0016
            • SSC-EWI-OR0020
            • SSC-EWI-OR0023
            • SSC-EWI-OR0026
            • SSC-EWI-OR0029
            • SSC-EWI-OR0030
            • SSC-EWI-OR0031
            • SSC-EWI-OR0032
            • SSC-EWI-OR0033
            • SSC-EWI-OR0035
            • SSC-EWI-OR0036
            • SSC-EWI-OR0038
            • SSC-EWI-OR0039
            • SSC-EWI-OR0042
            • SSC-EWI-OR0045
            • SSC-EWI-OR0046
            • SSC-EWI-OR0047
            • SSC-EWI-OR0049
            • SSC-EWI-OR0050
            • SSC-EWI-OR0051
            • SSC-EWI-OR0052
            • SSC-EWI-OR0053
            • SSC-EWI-OR0057
            • SSC-EWI-OR0067
            • SSC-EWI-OR0068
            • SSC-EWI-OR0069
            • SSC-EWI-OR0070
            • SSC-EWI-OR0071
            • SSC-EWI-OR0072
            • SSC-EWI-OR0075
            • SSC-EWI-OR0076
            • SSC-EWI-OR0078
            • SSC-EWI-OR0082
            • SSC-EWI-OR0087
            • SSC-EWI-OR0089
            • SSC-EWI-OR0090
            • SSC-EWI-OR0092
            • SSC-EWI-OR0095
            • SSC-EWI-OR0097
            • SSC-EWI-OR0099
            • SSC-EWI-OR0100
            • SSC-EWI-OR0101
            • SSC-EWI-OR0103
            • SSC-EWI-OR0104
            • SSC-EWI-OR0105
            • SSC-EWI-OR0108
            • SSC-EWI-OR0109
            • SSC-EWI-OR0110
            • SSC-EWI-OR0116
            • SSC-EWI-OR0118
            • SSC-EWI-OR0121
            • SSC-EWI-OR0123
            • SSC-EWI-OR0126
            • SSC-EWI-OR0128
            • SSC-EWI-OR0129
            • SSC-EWI-OR0133
            • SSC-EWI-OR0135
            • SSC-EWI-OR0136
          • Transact-SQL
            • SSC-EWI-TS0001
            • SSC-EWI-TS0002
            • SSC-EWI-TS0003
            • SSC-EWI-TS0009
            • SSC-EWI-TS0010
            • SSC-EWI-TS0013
            • SSC-EWI-TS0016
            • SSC-EWI-TS0017
            • SSC-EWI-TS0023
            • SSC-EWI-TS0024
            • SSC-EWI-TS0025
            • SSC-EWI-TS0026
            • SSC-EWI-TS0032
            • SSC-EWI-TS0034
            • SSC-EWI-TS0035
            • SSC-EWI-TS0036
            • SSC-EWI-TS0037
            • SSC-EWI-TS0039
            • SSC-EWI-TS0041
            • SSC-EWI-TS0043
            • SSC-EWI-TS0044
            • SSC-EWI-TS0045
            • SSC-EWI-TS0046
            • SSC-EWI-TS0047
            • SSC-EWI-TS0049
            • SSC-EWI-TS0055
            • SSC-EWI-TS0056
            • SSC-EWI-TS0057
            • SSC-EWI-TS0060
            • SSC-EWI-TS0061
            • SSC-EWI-TS0063
            • SSC-EWI-TS0067
            • SSC-EWI-TS0070
            • SSC-EWI-TS0072
            • SSC-EWI-TS0073
            • SSC-EWI-TS0074
            • SSC-EWI-TS0075
            • SSC-EWI-TS0076
            • SSC-EWI-TS0077
            • SSC-EWI-TS0078
            • SSC-EWI-TS0079
            • SSC-EWI-TS0080
            • SSC-EWI-TS0081
          • PostgreSQL
            • SSC-EWI-PG0001
            • SSC-EWI-PG0002
            • SSC-EWI-PG0003
            • SSC-EWI-PG0004
            • SSC-EWI-PG0006
            • SSC-EWI-PG0008
            • SSC-EWI-PG0007
            • SSC-EWI-PG0009
            • SSC-EWI-PG0010
            • SSC-EWI-PG0011
            • SSC-EWI-PG0012
            • SSC-EWI-PG0014
            • SSC-EWI-PG0015
            • SSC-EWI-PG0016
          • Redshift
            • SSC-EWI-RS0002
            • SSC-EWI-RS0003
            • SSC-EWI-RS0004
            • SSC-EWI-RS0005
            • SSC-EWI-RS0006
            • SSC-EWI-RS0007
            • SSC-EWI-RS0008
            • SSC-EWI-RS0009
          • Sybase IQ
            • SSC-EWI-SY0001
            • SSC-EWI-SY0002
            • SSC-EWI-SY0003
            • SSC-EWI-SY0004
            • SSC-EWI-SY0005
            • SSC-EWI-SY0006
            • SSC-EWI-SY0007
            • SSC-EWI-SY0008
            • SSC-EWI-SY0009
          • BigQuery
            • SSC-EWI-BQ0001
            • SSC-EWI-BQ0002
            • SSC-EWI-BQ0003
            • SSC-EWI-BQ0004
            • SSC-EWI-BQ0005
            • SSC-EWI-BQ0006
            • SSC-EWI-BQ0007
            • SSC-EWI-BQ0008
            • SSC-EWI-BQ0009
            • SSC-EWI-BQ0011
            • SSC-EWI-BQ0012
            • SSC-EWI-BQ0013
            • SSC-EWI-BQ0014
            • SSC-EWI-BQ0015
          • Greenplum
          • Spark
            • SSC-EWI-SPK0001
          • Hive
            • SSC-EWI-HV0001
        • Functional Difference Messages
          • General
            • SSC-FDM-0001
            • SSC-FDM-0002
            • SSC-FDM-0003
            • SSC-FDM-0004
            • SSC-FDM-0005
            • SSC-FDM-0006
            • SSC-FDM-0007
            • SSC-FDM-0008
            • SSC-FDM-0009
            • SSC-FDM-0010
            • SSC-FDM-0011
            • SSC-FDM-0012
            • SSC-FDM-0013
            • SSC-FDM-0014
            • SSC-FDM-0015
            • SSC-FDM-0016
            • SSC-FDM-0017
            • SSC-FDM-0018
            • SSC-FDM-0019
            • SSC-FDM-0020
            • SSC-FDM-0021
            • SSC-FDM-0022
            • SSC-FDM-0023
            • SSC-FDM-0024
            • SSC-FDM-0026
            • SSC-FDM-0027
            • SSC-FDM-0028
            • SSC-FDM-0029
            • SSC-FDM-0030
            • SSC-FDM-0031
            • SSC-FDM-0032
            • SSC-FDM-0033
            • SSC-FDM-0034
          • Teradata
            • SSC-FDM-TD0001
            • SSC-FDM-TD0002
            • SSC-FDM-TD0003
            • SSC-FDM-TD0004
            • SSC-FDM-TD0005
            • SSC-FDM-TD0006
            • SSC-FDM-TD0007
            • SSC-FDM-TD0008
            • SSC-FDM-TD0009
            • SSC-FDM-TD0010
            • SSC-FDM-TD0011
            • SSC-FDM-TD0012
            • SSC-FDM-TD0013
            • SSC-FDM-TD0014
            • SSC-FDM-TD0015
            • SSC-FDM-TD0016
            • SSC-FDM-TD0017
            • SSC-FDM-TD0018
            • SSC-FDM-TD0019
            • SSC-FDM-TD0020
            • SSC-FDM-TD0021
            • SSC-FDM-TD0022
            • SSC-FDM-TD0023
            • SSC-FDM-TD0024
            • SSC-FDM-TD0025
            • SSC-FDM-TD0026
            • SSC-FDM-TD0027
            • SSC-FDM-TD0028
            • SSC-FDM-TD0029
            • SSC-FDM-TD0030
            • SSC-FDM-TD0031
            • SSC-FDM-TD0032
            • SSC-FDM-TD0033
          • Oracle
            • SSC-FDM-OR0001
            • SSC-FDM-OR0002
            • SSC-FDM-OR0003
            • SSC-FDM-OR0004
            • SSC-FDM-OR0005
            • SSC-FDM-OR0006
            • SSC-FDM-OR0007
            • SSC-FDM-OR0008
            • SSC-FDM-OR0009
            • SSC-FDM-OR0010
            • SSC-FDM-OR0011
            • SSC-FDM-OR0012
            • SSC-FDM-OR0013
            • SSC-FDM-OR0014
            • SSC-FDM-OR0015
            • SSC-FDM-OR0016
            • SSC-FDM-OR0017
            • SSC-FDM-OR0018
            • SSC-FDM-OR0019
            • SSC-FDM-OR0020
            • SSC-FDM-OR0021
            • SSC-FDM-OR0022
            • SSC-FDM-OR0023
            • SSC-FDM-OR0024
            • SSC-FDM-OR0025
            • SSC-FDM-OR0026
            • SSC-FDM-OR0027
            • SSC-FDM-OR0028
            • SSC-FDM-OR0029
            • SSC-FDM-OR0030
            • SSC-FDM-OR0031
            • SSC-FDM-OR0032
            • SSC-FDM-OR0033
            • SSC-FDM-OR0034
            • SSC-FDM-OR0035
            • SSC-FDM-OR0036
            • SSC-FDM-OR0037
            • SSC-FDM-OR0038
            • SSC-FDM-OR0039
            • SSC-FDM-OR0040
            • SSC-FDM-OR0041
            • SSC-FDM-OR0042
            • SSC-FDM-OR0043
            • SSC-FDM-OR0044
            • SSC-FDM-OR0045
            • SSC-FDM-OR0046
            • SSC-FDM-OR0047
            • SSC-FDM-OR0049
          • Transact-SQL
            • SSC-FDM-TS0001
            • SSC-FDM-TS0002
            • SSC-FDM-TS0003
            • SSC-FDM-TS0004
            • SSC-FDM-TS0005
            • SSC-FDM-TS0006
            • SSC-FDM-TS0007
            • SSC-FDM-TS0008
            • SSC-FDM-TS0009
            • SSC-FDM-TS0010
            • SSC-FDM-TS0011
            • SSC-FDM-TS0012
            • SSC-FDM-TS0013
            • SSC-FDM-TS0014
            • SSC-FDM-TS0015
            • SSC-FDM-TS0016
            • SSC-FDM-TS0017
            • SSC-FDM-TS0018
            • SSC-FDM-TS0019
            • SSC-FDM-TS0020
            • SSC-FDM-TS0021
            • SSC-FDM-TS0022
            • SSC-FDM-TS0023
            • SSC-FDM-TS0024
            • SSC-FDM-TS0025
            • SSC-FDM-TS0026
            • SSC-FDM-TS0027
            • SSC-FDM-TS0028
            • SSC-FDM-TS0029
            • SSC-FDM-TS0030
            • SSC-FDM-TS0031
          • PostgreSQL
            • SSC-FDM-PG0001
            • SSC-FDM-PG0002
            • SSC-FDM-PG0003
            • SSC-FDM-PG0004
            • SSC-FDM-PG0005
            • SSC-FDM-PG0006
            • SSC-FDM-PG0007
            • SSC-FDM-PG0008
            • SSC-FDM-PG0009
            • SSC-FDM-PG0010
            • SSC-FDM-PG0011
            • SSC-FDM-PG0012
            • SSC-FDM-PG0013
            • SSC-FDM-PG0014
            • SSC-FDM-PG0015
            • SSC-FDM-PG0016
          • Redshift
            • SSC-FDM-RS0001
            • SSC-FDM-RS0002
            • SSC-FDM-RS0003
            • SSC-FDM-RS0004
            • SSC-FDM-RS0005
            • SSC-FDM-RS0006
            • SSC-FDM-RS0007
            • SSC-FDM-RS0008
          • Sybase IQ
            • SSC-FDM-SY0001
            • SSC-FDM-SY0002
          • BigQuery
            • SSC-FDM-BQ0001
            • SSC-FDM-BQ0002
            • SSC-FDM-BQ0003
            • SSC-FDM-BQ0004
            • SSC-FDM-BQ0005
            • SSC-FDM-BQ0006
            • SSC-FDM-BQ0007
            • SSC-FDM-BQ0008
            • SSC-FDM-BQ0010
          • Greenplum
            • SSC-FDM-GP0001
        • Performance Review Messages
          • General
            • SSC-PRF-0001
            • SSC-PRF-0002
            • SSC-PRF-0003
            • SSC-PRF-0004
            • SSC-PRF-0005
            • SSC-PRF-0006
            • SSC-PRF-0007
          • Teradata
          • Oracle
          • Transact-SQL
            • SSC-PRF-TS0001
        • Out-of-Scope
          • SSC-OOS-0001
      • Function References
        • SnowConvert UDFs
        • Oracle
          • BFILENAME_UDF
          • CAST_DATE_UDF
          • CLOSE_BULK_CURSOR_UDF
          • DATE_TO_JULIAN_DAYS_UDF
          • DATE_TO_RR_FORMAT_UDF
          • DATEADD_UDF (DATE, FLOAT)
          • DATEADD_UDF (FLOAT, DATE)
          • DATEADD_UDF (TIMESTAMP, FLOAT)
          • DATEADD_UDF (FLOAT, TIMESTAMP)
          • DATEDIFF_UDF(DATE, DATE)
          • DATEDIFF_UDF(DATE, TIMESTAMP)
          • DATEDIFF_UDF(DATE, INTEGER)
          • DATEDIFF_UDF(TIMESTAMP, TIMESTAMP)
          • DATEDIFF_UDF(TIMESTAMP, DATE)
          • DATEDIFF_UDF(TIMESTAMP, NUMBER)
          • DBMS_OUTPUT.PUT_LINE_UDF
          • DBMS_RANDOM.VALUE_UDF
          • DBMS_RANDOM.VALUE_UDF (DOUBLE, DOUBLE)
          • FETCH_BULK_COLLECTION_RECORDS_UDF (OBJECT, FLOAT, ARRAY)
          • FETCH_BULK_COLLECTION_RECORDS_UDF (OBJECT)
          • FETCH_BULK_COLLECTION_RECORDS_UDF (OBJECT, INTEGER)
          • FETCH_BULK_COLLECTION_RECORDS_UDF (OBJECT, ARRAY)
          • FETCH_BULK_COLLECTIONS_UDF (OBJECT, FLOAT)
          • FETCH_BULK_COLLECTIONS_UDF (OBJECT)
          • FETCH_BULK_RECORD_COLLECTIONS_UDF (OBJECT, FLOAT, ARRAY)
          • FETCH_BULK_RECORD_COLLECTIONS_UDF (OBJECT)
          • FETCH_BULK_RECORD_COLLECTIONS_UDF (OBJECT, INTEGER)
          • FETCH_BULK_RECORD_COLLECTIONS_UDF (OBJECT, ARRAY)
          • INIT_CURSOR_UDF
          • JSON_VALUE_UDF
          • JULIAN_TO_GREGORIAN_DATE_UDF
          • OPEN_BULK_CURSOR_UDF (OBJECT, ARRAY)
          • OPEN_BULK_CURSOR_UDF (OBJECT)
          • REGEXP_LIKE_UDF (STRING, STRING, STRING)
          • REGEXP_LIKE_UDF (STRING, STRING)
          • TIMESTAMP_DIFF_UDF
          • UPDATE_PACKAGE_VARIABLE_STATE_UDF
          • UTL_FILE.FCLOSE_UDF
          • UTL_FILE.FOPEN_UDF (VARCHAR,VARCHAR)
          • UTL_FILE.FOPEN_UDF (VARCHAR, VARCHAR, VARCHAR)
          • UTL_FILE.PUT_LINE_UDF
        • Shared
          • DATEADD_UDF (DATE, STRING)
          • DATEADD_UDF (TIMESTAMP, STRING)
          • DATEADD_UDF (STRING, DATE)
          • DATEADD_UDF (STRING, TIMESTAMP)
          • DATEDIFF_UDF (DATE, STRING)
          • DATEDIFF_UDF (TIMESTAMP, STRING)
          • DATEDIFF_UDF (STRING, DATE)
          • DATEDIFF_UDF (STRING, TIMESTAMP)
          • INTERVAL_ADD_UDF (VARCHAR, VARCHAR, VARCHAR, VARCHAR, CHAR, VARCHAR)
          • INTERVAL_MULTIPLY_UDF (VARCHAR, VARCHAR, INTEGER)
          • INTERVAL_TO_MONTHS_UDF (VARCHAR)
          • INTERVAL_TO_SECONDS_UDF (VARCHAR, VARCHAR)
          • MONTHS_TO_INTERVAL_UDF (VARCHAR, NUMBER)
          • SECONDS_TO_INTERVAL_UDF (VARCHAR, NUMBER)
          • TO_INTERVAL_UDF (TIME)
          • TRUNC_UDF (TIMESTAMP_LTZ, VARCHAR)
          • TRUNC_UDF (NUMBER, NUMBER)
          • TRUNC_UDF (NUMBER)
          • TRUNC_UDF (TIMESTAMP_LTZ)
        • Transact-SQL
          • CAST_NUMERIC_TO_TIMESTAMP_TZ_UDF (NUMBER)
          • CAST_TIME_TO_TIMESTAMP_TZ_UDF (TIME)
          • CAST_TIMESTAMP_TZ_TO_NUMERIC_UDF (TIMESTAMP_TZ)
          • CONSTRAINT_OBJECT_ID_UDF (VARCHAR)
          • DB_ID_UDF(STRING)
          • ERROR_LINE_UDF
          • ERROR_NUMBER_UDF
          • ERROR_PROCEDURE_UDF
          • ERROR_SEVERITY_UDF
          • ERROR_STATE_UDF
          • FORMATMESSAGE_UDF
          • FUNCTION_OBJECT_ID_UDF (VARCHAR)
          • GET_CURRENT_TIMEZONE_UDF
          • IDENTITY_UDF
          • IS_MEMBER_UDF
          • ISDATE_UDF
          • ISNUMERIC_UDF
          • OBJECT_ID_UDF (VARCHAR)
          • OFFSET_FORMATTER (VARCHAR)
          • OPENXML_UDF
          • PARSENAME_UDF
          • PATINDEX_UDF
          • PROCEDURE_OBJECT_ID_UDF (VARCHAR)
          • QUOTENAME_UDF (VARCHAR, VARCHAR)
          • QUOTENAME_UDF (VARCHAR)
          • RAISERROR_UDF (DOUBLE, DOUBLE, DOUBLE, ARRAY)
          • RAISERROR_UDF (VARCHAR, DOUBLE, DOUBLE, ARRAY)
          • ROUND_MILLISECONDS_UDF (TIMESTAMP_TZ)
          • SEQUENCE_OBJECT_ID_UDF (VARCHAR)
          • STR_UDF (FLOAT, VARCHAR)
          • STR_UDF(FLOAT)
          • SUBTRACT_TIMESTAMP_TZ_UDF (TIMESTAMP_TZ, TIMESTAMP_TZ)
          • SUM_TIMESTAMP_TZ_UDF (TIMESTAMP_TZ, TIMESTAMP_TZ)
          • SWITCHOFFSET_UDF (TIMESTAMP_TZ, VARCHAR)
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  • Description
  • Tera Mode for string comparison and NO COLLATE usages
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  1. Translation References
  2. Teradata
  3. Session Modes in Teradata

TERA Mode For Strings Comparison - NO COLLATE

This section defines the translation specification for string in Tera mode without using COLLATE.

Description

Tera Mode for string comparison and NO COLLATE usages

The Tera Mode string comparison without the use of COLLATE will apply RTRIM and UPPER as needed. The default case specification trim behavior may be taken into account.

Sample Source Patterns

Setup data

IN -> Teradata_01.sql
CREATE TABLE employees (
    employee_id INTEGER NOT NULL,
    first_name VARCHAR(50) NOT CASESPECIFIC,
    last_name VARCHAR(50) CASESPECIFIC,
    department VARCHAR(50)
);

INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (1, 'George', 'Snow', 'Sales');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (2, 'John', 'SNOW', 'Engineering');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (3, 'WIlle', 'SNOW', 'Human resources   ');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (4, 'Marco', 'SnoW   ', 'EngineerinG');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (5, 'Mary', '   ', 'SaleS  ');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (6, 'GEORGE', '  ', 'sales  ');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (7, 'GEORGE   ', '  ', 'salEs  ');
INSERT INTO employees(employee_id, first_name, last_name, department) VALUES (8, '    GeorgE   ', '  ', 'SalEs  ');
INSERT INTO employees (employee_id, first_name, last_name, department) VALUES (9, 'JOHN', '   SnoW', 'IT');
INSERT INTO employees (employee_id, first_name, last_name, department) VALUES (10, 'JOHN    ', 'snow', 'Finance   ');

CREATE TABLE departments (
    department_id INTEGER NOT NULL,
    department_name VARCHAR(50) NOT CASESPECIFIC,
    location VARCHAR(100) CASESPECIFIC,
    PRIMARY KEY (department_id)
);


INSERT INTO departments (department_id, department_name, location) VALUES (101, 'Information Technology', 'New York');
INSERT INTO departments (department_id, department_name, location) VALUES (102, 'Human Resources', 'Chicago');
INSERT INTO departments (department_id, department_name, location) VALUES (103, 'Sales', 'San Francisco');
INSERT INTO departments (department_id, department_name, location) VALUES (104, 'Finance', 'Boston');
OUT -> Teradata_01.sql
CREATE OR REPLACE TABLE employees (
    employee_id INTEGER NOT NULL,
    first_name VARCHAR(50),
    last_name VARCHAR(50),
    department VARCHAR(50)
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "10/30/2024",  "domain": "test" }}'
;

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (1, 'George', 'Snow', 'Sales');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (2, 'John', 'SNOW', 'Engineering');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (3, 'WIlle', 'SNOW', 'Human resources   ');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (4, 'Marco', 'SnoW   ', 'EngineerinG');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (5, 'Mary', '   ', 'SaleS  ');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (6, 'GEORGE', '  ', 'sales  ');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (7, 'GEORGE   ', '  ', 'salEs  ');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (8, '    GeorgE   ', '  ', 'SalEs  ');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (9, 'JOHN', '   SnoW', 'IT');

INSERT INTO employees (employee_id, first_name, last_name, department)
VALUES (10, 'JOHN    ', 'snow', 'Finance   ');

CREATE OR REPLACE TABLE departments (
    department_id INTEGER NOT NULL,
    department_name VARCHAR(50),
    location VARCHAR(100),
       PRIMARY KEY (department_id)
   )
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "10/30/2024",  "domain": "test" }}'
;

INSERT INTO departments (department_id, department_name, location)
VALUES (101, 'Information Technology', 'New York');

INSERT INTO departments (department_id, department_name, location)
VALUES (102, 'Human Resources', 'Chicago');

INSERT INTO departments (department_id, department_name, location)
VALUES (103, 'Sales', 'San Francisco');

INSERT INTO departments (department_id, department_name, location)
VALUES (104, 'Finance', 'Boston');

Comparison operation

Case 1: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

This example demonstrates the usage of a column set up as NOT CASESPECIFIC as it is a first_name column. Even when asking for the string 'GEorge', the query execution will retrieve results in Teradata because the case specification is not considered.

To emulate this scenario in Snowflake, there are implemented two functions: RTRIM(UPPER(string_evaluation)), UPPER is required in this scenario because the string does not review the case specification.

Teradata

SELECT *
FROM employees
WHERE first_name = 'GEorge ';
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT
 *
FROM
 employees
WHERE
 RTRIM(UPPER(first_name)) = RTRIM(UPPER('GEorge '));
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Case 2: Column constraint is CASESPECIFIC and database mode is TERA Mode

For this example, the column constraint is CASESPECIFIC, for which the example does not retrieve rows in Teradata because 'Snow' is not equal to 'SNOW'.

In Snowflake, the resulting migration points only to the use of the RTRIM function since the case specification is important.

Teradata

SELECT *
FROM employees
WHERE last_name = 'SNOW ';
employee_id
first_name
last_name
department

3

WIlle

SNOW

Human resources

2

John

SNOW

Engineering

Snowflake

SELECT
 *
FROM
 employees
WHERE
 RTRIM(last_name) = RTRIM('SNOW ');
employee_id
first_name
last_name
department

3

WIlle

SNOW

Human resources

2

John

SNOW

Engineering

Case 3: CAST CASESPECIFIC column to NOT CASESPECIFIC and database mode is TERA Mode

Teradata

The (CASESPECIFIC) overrides the column constraint in the table definition.

SELECT * FROM employees WHERE first_name = 'GEORGE   ' (CASESPECIFIC);
employee_id
first_name
last_name
department

7

GEORGE

salEs

6

GEORGE

sales

Snowflake

RTRIM is required on the left side, and RTRIM is required on the right side.

SELECT
   * 
FROM
   employees
WHERE
   RTRIM(first_name) = RTRIM('GEORGE   ' /*** SSC-FDM-TD0032 - CASESPECIFIC CLAUSE WAS REMOVED ***/);
employee_id
first_name
last_name
department

7

GEORGE

salEs

6

GEORGE

sales

Case 4: CAST NOT CASESPECIFIC column to NOT CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT * FROM employees WHERE first_name = 'GEorge   ' (NOT CASESPECIFIC) ;
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT
   * 
FROM
   employees
WHERE
   UPPER(RTRIM(first_name)) = UPPER(RTRIM('GEorge   ' /*** SSC-FDM-TD0032 - NOT CASESPECIFIC CLAUSE WAS REMOVED ***/));
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Case 5: Blank spaces case. Column constraint is NOT CASESPECIFIC, database mode is TERA Mode, and using equal operation

Teradata

SELECT *
FROM employees
WHERE last_name = '   ';
employee_id
first_name
last_name
department

7

GEORGE

salEs

5

Mary

SaleS

8

GeorgE

SalEs

6

GEORGE

sales

Snowflake

SELECT
   *
FROM
   employees
WHERE
   RTRIM(last_name) = RTRIM('   ');
employee_id
first_name
last_name
department

7

GEORGE

salEs

5

Mary

SaleS

8

GeorgE

SalEs

6

GEORGE

sales

LIKE operation

This operation works differently from another one. Blank spaces must be the same quantity to retrieve information.

Case 1: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

This example is expected to display one row because the case specification is not relevant.

Teradata

SELECT *
FROM employees
WHERE first_name LIKE 'GeorgE';
employee_id
first_name
last_name
department

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT *
FROM employees
WHERE first_name ILIKE 'GeorgE';
employee_id
first_name
last_name
department

1

George

Snow

Sales

6

GEORGE

sales

Case 2: Column constraint is CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT *
FROM employees
WHERE last_name LIKE 'Snow';
first_name
last_name
department

George

Snow

Sales

Jonh

Snow

Engineering

Snowflake

SELECT *
FROM employees
WHERE last_name LIKE 'Snow';
first_name
last_name
department

George

Snow

Sales

Jonh

Snow

Engineering

Case 3: CAST CASESPECIFIC column to NOT CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT *
FROM employees
WHERE first_name LIKE 'George' (NOT CASESPECIFIC);
employee_id
first_name
last_name
department

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT
   *
FROM
   employees
WHERE 
   first_name ILIKE 'George' /*** SSC-FDM-TD0032 - NOT CASESPECIFIC CLAUSE WAS REMOVED ***/;
employee_id
first_name
last_name
department

1

George

Snow

Sales

6

GEORGE

sales

Case 4: CAST NOT CASESPECIFIC column to NOT CASESPECIFIC and database mode is ANSI Mode

This case requires the translation to ILIKE.

Teradata

SELECT *
FROM employees
WHERE first_name LIKE 'GE%' (NOT CASESPECIFIC);
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT
   *
FROM
   employees
WHERE
   first_name ILIKE 'GE%' /*** SSC-FDM-TD0032 - NOT CASESPECIFIC CLAUSE WAS REMOVED ***/;
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

IN Operation

Case 1: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT *
FROM employees
WHERE first_name IN ('GeorgE');
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Snowflake

SELECT *
FROM employees
WHERE RTRIM(UPPER(first_name)) IN (RTRIM(UPPER('GeorgE')));
employee_id
first_name
last_name
department

7

GEORGE

salEs

1

George

Snow

Sales

6

GEORGE

sales

Case 2: Column constraint is CASESPECIFIC and database mode is TERA Mode

For this example, the usage of the UPPER function is not required since, in the Teradata database, the case specification is relevant to the results.

Teradata

SELECT *
FROM employees
WHERE last_name IN ('SnoW');
employee_id
first_name
last_name
department

4

Marco

SnoW

EngineerinG

Snowflake

SELECT *
FROM employees
WHERE RTRIM(last_name) IN (RTRIM('SnoW'));
employee_id
first_name
last_name
department

4

Marco

SnoW

EngineerinG

ORDER BY clause

Case 1: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

Notice that this output order can differ.

Teradata

SELECT department
FROM employees
ORDER BY department;
department

EngineerinG

Engineering

Finance

Human resources

IT

sales

SalEs

Sales

SaleS

salEs

Snowflake

SELECT department
FROM employees
ORDER BY UPPER(department);
department

EngineerinG

Engineering

Finance

Human resources

IT

sales

SalEs

Sales

SaleS

salEs

Case 2: Column constraint is CASESPECIFIC and database mode is TERA Mode

Notice that this output can differ in order.

Teradata

SELECT last_name
FROM employees
ORDER BY last_name;
last_name

SnoW

SNOW

SNOW

SnoW

Snow

snow

Snowflake

SELECT last_name
FROM employees
ORDER BY last_name;
last_name

SnoW

SNOW

SNOW

SnoW

Snow

snow

GROUP BY clause

Notice that this output can differ. To ensure a functional equivalence, it is required to use the COLLATE expression.

Please review the SSC-EWI-TD0007 for more information.

The following might be a workaround without collate:

SELECT RTRIM(UPPER(first_name))

FROM employees

GROUP BY RTRIM(UPPER(first_name));

About the column behavior

Please review the insertion of data in Snowflake. Snowflake does allow the insertion of values as 'GEORGE' and 'georges' without showing errors because the case specification is not bound explicitly with the column.

Assume a table and data as follows:

CREATE TABLE students (
   first_name VARCHAR(50) NOT CASESPECIFIC
);

INSERT INTO students(first_name) VALUES ('George');
INSERT INTO students(first_name) VALUES ('   George');

Notice that this sample does not allow inserting values with upper and lower case letters in the NOT CASESPECIFIC column because it takes it as the same value. Because the column does not supervise the case specification, the 'GEORGE' and 'george' values are checked as the same information.

The following rows are taken as duplicated row errors:

INSERT INTO students(first_name) VALUES ('GEORGE');
INSERT INTO students(first_name) VALUES ('GeorGe');
INSERT INTO students(first_name) VALUES ('George  ');
INSERT INTO students(first_name) VALUES ('GeOrge');
INSERT INTO students(first_name) VALUES ('GEorge');
INSERT INTO students(first_name) VALUES ('George');

Case 1: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT first_name
FROM employees
GROUP BY first_name;
first_name

Mary

GeorgE

WIlle

JOHN

Marco

GEORGE

Snowflake

SELECT
   first_name
FROM
   employees
!!!RESOLVE EWI!!! /*** SSC-EWI-TD0007 - GROUP BY IS NOT EQUIVALENT IN TERADATA MODE ***/!!!
GROUP BY first_name;
first_name

George

John

WIlle

Marco

Mary

GEORGE

GEORGE

GeorgE

JOHN

JOHN

Case 2: Column constraint is CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT last_name
FROM employees
GROUP BY last_name;
last_name

SnoW

SNOW

SnoW

Snow

snow

Snowflake

SELECT
   last_name
FROM
   employees
!!!RESOLVE EWI!!! /*** SSC-EWI-TD0007 - GROUP BY IS NOT EQUIVALENT IN TERADATA MODE ***/!!!
GROUP BY last_name;
last_name

SnoW

SNOW

SnoW

Snow

snow

HAVING clause

The HAVING clause will use the patterns in:

  • Evaluation operations.

    • For example: =, !=, <, >.

  • LIKE operation.

  • IN Operation.

  • CAST to evaluation operation.

  • CAST to LIKE operation.

The following sample showcases a pattern with evaluation operation.

Sample: Column constraint is CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT last_name
FROM employees
GROUP BY last_name
HAVING last_name = 'Snow';
last_name

Snow

Snowflake

SELECT last_name
FROM employees
GROUP BY last_name
HAVING RTRIM(last_name) = RTRIM('Snow');
last_name

Snow

CASE WHEN statement

The CASE WHEN statement will use the patterns described in:

  • Evaluation operations.

    • For example: =, !=, <, >.

  • LIKE operation.

  • IN Operation.

  • CAST to evaluation operation.

  • CAST to LIKE operation.

The following sample showcases a pattern with evaluation operation.

Teradata

SELECT first_name,
      last_name,
      CASE
          WHEN department = 'EngineerinG' THEN 'Information Technology'
          WHEN last_name = 'SNOW' THEN 'GLOBAL COOL SALES'
          ELSE 'Other'
      END AS department_full_name
FROM employees;
first_name
last_name
department_full_name

GEORGE

Other

JOHN

SnoW

Other

Mary

Other

JOHN

snow

Other

WIlle

SNOW

GLOBAL COOL SALES

George

Snow

Other

GeorgE

Other

GEORGE

Other

Marco

SnoW

Information Technology

John

SNOW

Information Technology

Snowflake

SELECT
   first_name,
   last_name,
   CASE
      WHEN UPPER(RTRIM(department)) = UPPER(RTRIM('EngineerinG'))
         THEN 'Information Technology'
      WHEN RTRIM(last_name) = RTRIM('SNOW')
         THEN 'GLOBAL COOL SALES'
      ELSE 'Other'
   END AS department_full_name
FROM
   employees;
first_name
last_name
department_full_name

GEORGE

Other

JOHN

SnoW

Other

Mary

Other

JOHN

snow

Other

WIlle

SNOW

GLOBAL COOL SALES

George

Snow

Other

GeorgE

Other

GEORGE

Other

Marco

SnoW

Information Technology

John

SNOW

Information Technology

JOIN clause

Simple scenarios are supported.

The JOIN statement will use the patterns described in:

  • Evaluation operations.

    • For example: =, !=, <, >.

  • LIKE operation.

  • IN Operation.

  • CAST to evaluation operation.

  • CAST to LIKE operation.

The following sample showcases a pattern with evaluation operation.

Sample: Column constraint is NOT CASESPECIFIC and database mode is TERA Mode

Teradata

SELECT
    e.employee_id,
    e.first_name,
    e.last_name,
    d.department_name
FROM
    employees e
JOIN
    departments d
ON
    e.department = d.department_name;
employee_id
first_name
last_name
department_name

1

George

Snow

Sales

3

WIlle

SNOW

Human Resources

5

Mary

Sales

6

GEORGE

Sales

7

GEORGE

Sales

8

GeorgE

Sales

10

JOHN

snow

Finance

Snowflake

SELECT
   e.employee_id,
   e.first_name,
   e.last_name,
   d.department_name
FROM
   employees e
JOIN
   departments d
ON UPPER(RTRIM(e.department)) = UPPER(RTRIM(d.department_name));
employee_id
first_name
last_name
department_name

1

George

Snow

Sales

3

WIlle

SNOW

Human Resources

5

Mary

Sales

6

GEORGE

Sales

7

GEORGE

Sales

8

GeorgE

Sales

10

JOHN

snow

Finance

Known Issues

  1. there are some mode-specific SQL statement restrictions: BEGIN TRANSACTION, END TRANSACTION, COMMIT [WORK].

  2. Data insertion may differ in Snowflake since the case specification is not bound to the column declaration.

  3. GROUP BY may differ in order, but group the correct values.

  4. ORDER BY behaves differently in Snowflake.

  5. If a function has a TRIM() from the source code, this workaround will add the required functions to the source code. So, RTRIM will be applied to the TRIM() source function.

Related EWIs

PreviousSession Modes in TeradataNextTERA Mode For Strings Comparison - COLLATE

Last updated 6 months ago

In Snowflake, the migration uses the operation. This performs a case-insensitive comparison.

: GROUP BY IS NOT EQUIVALENT IN TERADATA MODE

📘
ILIKE
SSC-EWI-TD0007