SnowConvert AI – Probleme mit Teradata¶

 SELECT
    COL1 AS COL2,
    COL2 AS COL1
FROM
    TABLE_EXAMPLE;

 // SnowConvert AI Helpers Code section is omitted.
SELECT
    COL1 AS COL2,
    !!!RESOLVE EWI!!! /*** SSC-EWI-TD0001 - 'COL1' HAS RECURSIVE REFERENCES. FORWARD ALIAS CONVERSION COULD NOT BE COMPLETED ***/!!!
    COL2 AS COL1
FROM
    TABLE_EXAMPLE;

 SELECT
    A + B as C,
    COL2 + C AS A,
    COL3 AS B
FROM
    TABLE_EXAMPLE;

 // SnowConvert AI Helpers Code section is omitted.
SELECT
    !!!RESOLVE EWI!!! /*** SSC-EWI-TD0001 - 'A' HAS RECURSIVE REFERENCES. FORWARD ALIAS CONVERSION COULD NOT BE COMPLETED ***/!!!
    COL2 + C AS A,
    COL3 AS B,
    A + B as C
FROM
    TABLE_EXAMPLE;

 SELECT REGEXP_SUBSTR('qaqequ','q(?=u)', 1, 1);

 SELECT
!!!RESOLVE EWI!!! /*** SSC-EWI-0009 - REGEXP_SUBSTR FUNCTION ONLY SUPPORTS POSIX REGULAR EXPRESSIONS ***/!!!
REGEXP_SUBSTR('qaqequ','q(?=u)', 1, 1);

 REPLACE PROCEDURE ABORT_SAMPLE()
BEGIN 
    ABORT WHERE SUM(TABLE1.COL1) < 2;
END;

 CREATE OR REPLACE PROCEDURE ABORT_SAMPLE()
RETURNS VARCHAR
LANGUAGE SQL
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
EXECUTE AS CALLER
AS
$$
    BEGIN
        !!!RESOLVE EWI!!! /*** SSC-EWI-TD0024 - ABORT STATEMENT IS NOT SUPPORTED DUE TO AN AGGREGATE FUNCTION ***/!!!
        ABORT WHERE SUM(TABLE1.COL1) < 2;
    END;
$$;

 CREATE TABLE SAMPLE_TABLE
(
    VARCHAR_TYPE VARCHAR
);

REPLACE VIEW SAMPLE_VIEW 
AS
SELECT
CAST(VARCHAR_TYPE AS FLOAT FORMAT 'ZZZ.ZZZZZ'),
CAST('01:02.030405' AS TIME(1) WITH TIME ZONE FORMAT 'MI:SS.S(6)')
FROM SAMPLE_TABLE;

 CREATE OR REPLACE TABLE SAMPLE_TABLE
(
    VARCHAR_TYPE VARCHAR
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "03/03/2025",  "domain": "test" }}'
;

CREATE OR REPLACE VIEW SAMPLE_VIEW
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "03/03/2025",  "domain": "test" }}'
AS
SELECT
    TO_NUMBER(VARCHAR_TYPE, '999.00000', 38, 10) !!!RESOLVE EWI!!! /*** SSC-EWI-TD0025 - OUTPUT FORMAT 'ZZZ.ZZZZZ' NOT SUPPORTED. ***/!!!,
    TO_TIME('01:02.030405', 'MI:SS.FF6') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0025 - OUTPUT FORMAT 'MI:SS.S(6)' NOT SUPPORTED. ***/!!!
    FROM
    SAMPLE_TABLE;

 CREATE MULTISET TABLE SAMPLE_TABLE   
(
    COL1 PERIOD(TIMESTAMP(6) WITH TIME ZONE) NOT NULL AS TRANSACTIONTIME
);  

 CREATE OR REPLACE TABLE SAMPLE_TABLE (
       COL1 VARCHAR(68) NOT NULL !!!RESOLVE EWI!!! /*** SSC-EWI-TD0027 - SNOWFLAKE DOES NOT SUPPORT 'TRANSACTIONTIME' COLUMN OPTION ***/!!! /*** SSC-FDM-TD0036 - SNOWFLAKE DOES NOT SUPPORT THE PERIOD DATATYPE, ALL PERIODS ARE HANDLED AS VARCHAR INSTEAD ***/
   )
   COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
;

 CREATE MULTISET TABLE SAMPLE_TABLE,
QUEUE,
NO FALLBACK 
(
    COL1 INTEGER
);

 !!!RESOLVE EWI!!! /*** SSC-EWI-TD0029 - QUEUE TABLE FUNCTIONALITY NOT SUPPORTED ***/!!!
CREATE OR REPLACE TABLE SAMPLE_TABLE
(
    COL1 INTEGER
)
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
;

 CREATE TABLE table1
(
    col1 VARCHAR(36),
    col2 CHAR(36)
);

INSERT INTO table1 VALUES ('Gabriel', 'Gabriel');
INSERT INTO table1 VALUES ('Barnum', 'Barnum');
INSERT INTO table1 VALUES ('Sergio', 'Sergio');

SELECT col1 FROM table1 where col1 LIKE 'Barnum';
-- The result is a single row with 'Barnum'
SELECT col2 FROM table1 where col2 LIKE 'Barnum';
-- It does not return any row

 CREATE OR REPLACE TABLE table1
(
    col1 VARCHAR(36),
    col2 CHAR(36)
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "07/14/2025",  "domain": "no-domain-provided" }}'
;

INSERT INTO table1
VALUES ('Gabriel', 'Gabriel');

INSERT INTO table1
VALUES ('Barnum', 'Barnum');

INSERT INTO table1
VALUES ('Sergio', 'Sergio');

SELECT
    col1 FROM
    table1
where col1 ILIKE 'Barnum';
-- The result is a single row with 'Barnum'
    SELECT
    col2 FROM
    table1
    where
    !!!RESOLVE EWI!!! /*** SSC-EWI-TD0031 - THE RESULT OF LIKE MAY DIFFER DUE TO CHAR TYPE HAVING A FIXED LENGTH IN TERADATA ***/!!! col2 ILIKE 'Barnum';
    -- It does not return any row

 CREATE OR REPLACE PROCEDURE proc1 ()
RETURNS STRING
LANGUAGE JAVASCRIPT
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
EXECUTE AS CALLER
AS
$$
  // SnowConvert AI Helpers Code section is omitted.

  var TRANSACTION_HANDLER = function (error) {
    throw error;
  };
  // ** SSC-EWI-TD0034 - MULTISTATEMENT SQL EXECUTION NOT SUPPORTED, REQUEST HANDLED AS TRANSACTION **
  try {
    EXEC(`BEGIN`);
    EXEC(`SELECT
   *
FROM
   TABLE1`,[],undefined,TRANSACTION_HANDLER);
    EXEC(`COMMIT`);
  } catch(error) {
    EXEC(`ROLLBACK`);
  }
$$;

 SELECT 
    CAST('02/032/25' AS DATE FORMAT 'MM/DDD/YY'),
    CAST('02/032/25' AS DATE FORMAT 'MM/D3/YY'),
    CAST('03-Thursday-2025' AS DATE FORMAT 'DD-EEEE-YYYY'),
    CAST('03-Thursday-2025' AS DATE FORMAT 'DD-E4-YYYY');

 SELECT
    TO_DATE('02/032/25', 'MM/DDD/YY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0039 - INPUT FORMAT 'MM/DDD/YY' NOT SUPPORTED ***/!!!,
    TO_DATE('02/032/25', 'MM/D3/YY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0039 - INPUT FORMAT 'MM/D3/YY' NOT SUPPORTED ***/!!!,
    TO_DATE('03-Thursday-2025', 'DD-EEEE-YYYY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0039 - INPUT FORMAT 'DD-EEEE-YYYY' NOT SUPPORTED ***/!!!,
    TO_DATE('03-Thursday-2025', 'DD-E4-YYYY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0039 - INPUT FORMAT 'DD-E4-YYYY' NOT SUPPORTED ***/!!!;

 CREATE TABLE T_2040
(
    C1 VARCHAR(255) CHARACTER SET LATIN NOT CASESPECIFIC FORMAT 'X(50)',
    C2 VARCHAR(255) CHARACTER SET LATIN NOT CASESPECIFIC FORMAT 'X(75)'
);

 CREATE OR REPLACE TABLE T_2040
(
    C1 VARCHAR(255) FORMAT 'X(50)' !!!RESOLVE EWI!!! /*** SSC-EWI-TD0040 - FORMAT: 'X(50)' IN TABLE NOT SUPPORTED ***/!!!,
    C2 VARCHAR(255) FORMAT 'X(75)' !!!RESOLVE EWI!!! /*** SSC-EWI-TD0040 - FORMAT: 'X(75)' IN TABLE NOT SUPPORTED ***/!!!
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "07/14/2025",  "domain": "no-domain-provided" }}'
;

 SELECT
    cast(date_column as integer);

 SELECT
    cast(TRUNC(date_column) as integer) !!!RESOLVE EWI!!! /*** SSC-EWI-TD0041 - TRUNC FUNCTION WAS ADDED TO ENSURE INTEGER. MAY NEED CHANGES IF NOT NUMERIC OR STRING. ***/!!!;

 CREATE VIEW SAMPLE_VIEW
AS
SELECT PROTECTIONTYPE FROM DBC.DATABASES;

 CREATE OR REPLACE VIEW SAMPLE_VIEW
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "08/14/2024" }}'
AS
SELECT
!!!RESOLVE EWI!!! /*** SSC-EWI-TD0046 - BUILT-IN REFERENCE TO PROTECTIONTYPE IS NOT SUPPORTED IN SNOWFLAKE ***/!!!
PROTECTIONTYPE FROM
INFORMATION_SCHEMA.DATABASES;

 -- Script1.tpt
DEFINE JOB load_job
DESCRIPTION 'LOAD TABLE FROM A FILE'
  (
     DEFINE SCHEMA schema_name
     DESCRIPTION 'define SCHEMA'
   (
       var1 VARCHAR (50)
   );

   STEP setup_tables
   (
      APPLY
       ('RELEASE MLOAD database_name.table_name;')
     TO OPERATOR (DDL_OPERATOR() );

   );
);

 create table sampleTable(
    byteColumn byte(10),
    varbyteColumn varbyte(15)
);

select bytes(byteColumn), bytes(varbyteColumn) from sampleTable;

 CREATE OR REPLACE TABLE sampleTable (
    byteColumn BINARY,
    varbyteColumn BINARY(15)
)
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
;

SELECT
    LENGTH(byteColumn) !!!RESOLVE EWI!!! /*** SSC-EWI-TD0051 - TERADATA BYTES FUNCTION RESULTS DIFFER FROM SNOWFLAKE LENGTH FUNCTION FOR BYTE TYPE COLUMNS ***/!!!,
    LENGTH(varbyteColumn) from
    sampleTable;

 create table myTable(
    stringCol varchar(30)
);

insert into myTable values ('   1,236,857.45-');

select cos('   1,236,857.45-');

select cos(stringCol) from myTable;

 CREATE OR REPLACE TABLE myTable (
    stringCol varchar(30)
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "07/14/2025",  "domain": "no-domain-provided" }}'
;

INSERT INTO myTable
VALUES ('   1,236,857.45-');

SELECT
    COS('-1236857.45');

    SELECT
    COS(stringCol !!!RESOLVE EWI!!! /*** SSC-EWI-TD0052 - SNOWFLAKE IMPLICIT CONVERSION TO NUMERIC DIFFERS FROM TERADATA AND MAY FAIL FOR NON-LITERAL STRING VALUES ***/!!!)
    from
    myTable;

 create table vacations (
    employeeName varchar(50),
    duration period(date)
);

insert into vacations values ('Richard', period(date '2021-05-15', date '2021-06-15'));

select end(duration) from vacations;

 CREATE OR REPLACE TABLE vacations (
    employeeName varchar(50),
    duration VARCHAR(24) /*** SSC-FDM-TD0036 - SNOWFLAKE DOES NOT SUPPORT THE PERIOD DATATYPE, ALL PERIODS ARE HANDLED AS VARCHAR INSTEAD ***/
)
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"teradata"}}'
;

INSERT INTO vacations
VALUES ('Richard', PUBLIC.PERIOD_UDF(date '2021-05-15', date '2021-06-15') !!!RESOLVE EWI!!! /*** SSC-FDM-TD0036 - SNOWFLAKE DOES NOT SUPPORT THE PERIOD DATATYPE, ALL PERIODS ARE HANDLED AS VARCHAR INSTEAD ***/);

SELECT
    PUBLIC.PERIOD_END_UDF(duration) /*** SSC-FDM-TD0036 - SNOWFLAKE DOES NOT SUPPORT THE PERIOD DATATYPE, ALL PERIODS ARE HANDLED AS VARCHAR INSTEAD ***/ from
    vacations;

 select to_char(date '2008-09-13', 'DD/RM/YYYY');

select to_char(date '2010-10-20', 'DS');

select to_char(1255.495, 'SC9999.9999', 'nls_iso_currency = ''EUR''');

select to_char(45620);

 SELECT
TO_CHAR(date '2008-09-13', 'DD/') || PUBLIC.ROMAN_NUMERALS_MONTH_UDF(date '2008-09-13') || TO_CHAR(date '2008-09-13', '/YYYY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0055 - SNOWFLAKE SUPPORTED FORMATS FOR TO_CHAR DIFFER FROM TERADATA AND MAY FAIL OR HAVE DIFFERENT BEHAVIOR ***/!!!;

SELECT
TO_CHAR(date '2010-10-20', 'MM/DD/YYYY') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0055 - SNOWFLAKE SUPPORTED FORMATS FOR TO_CHAR DIFFER FROM TERADATA AND MAY FAIL OR HAVE DIFFERENT BEHAVIOR ***/!!!;

SELECT
PUBLIC.INSERT_CURRENCY_UDF(TO_CHAR(1255.495, 'S9999.0000'), 2, 'EUR') !!!RESOLVE EWI!!! /*** SSC-EWI-TD0055 - SNOWFLAKE SUPPORTED FORMATS FOR TO_CHAR DIFFER FROM TERADATA AND MAY FAIL OR HAVE DIFFERENT BEHAVIOR ***/!!!;

SELECT
TO_CHAR(45620) !!!RESOLVE EWI!!! /*** SSC-EWI-TD0055 - SNOWFLAKE SUPPORTED FORMATS FOR TO_CHAR DIFFER FROM TERADATA AND MAY FAIL OR HAVE DIFFERENT BEHAVIOR ***/!!!;

 SELECT
!!!RESOLVE EWI!!! /*** SSC-EWI-TD0057 - NEW JSON FUNCTION WITH BINARY DATA IS NOT SUPPORTED ***/!!!!!!RESOLVE EWI!!! /*** SSC-EWI-TD0039 - INPUT FORMAT 'BSON' NOT SUPPORTED ***/!!!
NEW JSON (TO_BINARY('160000000268656C6C6F0006000000776F726C640000'), BSON);

 SET TIME ZONE USER;

 !!!RESOLVE EWI!!! /*** SSC-EWI-TD0059 - SNOWFLAKE USER DEFAULT TIME ZONE MAY REQUIRE CONFIGURATION TO MATCH TERADATA VALUE ***/!!!
ALTER SESSION UNSET TIMEZONE;

 CREATE TABLE demo.Train (
    firstCol INT,
    jsonCol JSON(400),
    thirdCol VARCHAR(30)
);

SELECT * FROM JSON_TABLE 
(ON (SELECT T.*
           FROM demo.Train T)
USING rowexpr('$.schools[*]')
               colexpr('[ {"jsonpath" : "$.name",
                           "type" : "CHAR(20)"},
                          {"jsonpath" : "$.type",
                           "type" : "VARCHAR(20)"}]')
)
AS JT;

SELECT * FROM JSON_TABLE 
(ON (SELECT T.*
           FROM demo.missingTable T)
USING rowexpr('$.schools[*]')
               colexpr('[ {"jsonpath" : "$.name",
                           "type" : "CHAR(20)"},
                          {"jsonpath" : "$.type",
                           "type" : "VARCHAR(20)"}]')
)
AS JT;

 CREATE OR REPLACE TABLE demo.Train (
    firstCol INT,
    jsonCol VARIANT,
    thirdCol VARCHAR(30)
)
COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": {  "major": 0,  "minor": 0,  "patch": "0" }, "attributes": {  "component": "teradata",  "convertedOn": "12/16/2024",  "domain": "test" }}'
;

SELECT
    * FROM
    (
        SELECT
            firstCol,
            rowexpr.value:name :: CHAR(20) AS Column_0,
            rowexpr.value:type :: VARCHAR(20) AS Column_1,
            thirdCol
        FROM
            demo.Train T,
            TABLE(FLATTEN(INPUT => jsonCol:schools)) rowexpr
    ) JT;

    SELECT
    * FROM
    !!!RESOLVE EWI!!! /*** SSC-EWI-TD0060 - JSON_TABLE NOT TRANSFORMED, COLUMN NAMES COULD NOT BE RETRIEVED FROM SEMANTIC INFORMATION ***/!!! JSON_TABLE
   (ON (
        SELECT
            T.*
                  FROM
            demo.missingTable T)
   USING rowexpr('$.schools[*]')
                  colexpr('[ {"jsonpath" : "$.name",
                           "type" : "CHAR(20)"},
                          {"jsonpath" : "$.type",
                           "type" : "VARCHAR(20)"}]')
   )
   AS JT;