Teradata 中有一个系统 table，我可以在其中找到列类型的全名？
There is a system table in Teradata where I can find the full name of column types?
我正在使用 Teradata 14.10，但我还没有找到一个系统 table 包含 table 中字段 ColumnTypes 中使用的数据类型的全名 DBC.Columns 和 DBC.ColumnsVX
我在此 forum 上找到了从 ColumnTypes 代码到其全名的映射，但我不想手动进行映射。
SELECT
trim(ColumnName) ||
case columnType
when 'CV' then ' varchar(' || trim(ColumnLength) || ') '
when 'DA' then ' date '
when 'F' then ' float '
when 'N' then ' number '
when 'D' then ' decimal(' || trim(DecimalTotalDigits) || ',' || trim(DecimalFractionalDigits) || ') '
when 'TS' then ' timestamp( ' || trim(ColumnLength) || ') '
when 'AT' then ' time '
when 'CF' then ' char(' || trim(ColumnLength) || ') '
end ColumnDef
FROM DBC.columns s1
WHERE databasename='$database' and tablename='$table';
我不知道 DBC 中有任何 table 包含此信息，但您可以在 Teradata 文档中找到此信息（也许可以将其加载到您自己的 table 中）。
数据字典文档指定了 DBC.Columns 中 ColumnType 的所有可能值。我在这里列出了该列表的开头，以防它有一些帮助，来自 TD 15.10 的文档（第 3 章，第 94 页）。
Value Description
----------------------------------------------------------
++ TD_ANYTYPE
A1 One dimensional ARRAY data type
AT ANSI Time
BF BYTE Fixed
BO Byte Large Object
我没有检查向后兼容性，但它几乎肯定是向后兼容的（没有理由不应该）。同一文档包含大量其他有关大量 DBC 对象中可能值的有用信息。
没有正式的 table，但可以很容易地从 Data Dictionary manual 中提供的映射创建它（这是 DevEx-link 中列表的复制来源） .
但我更喜欢一个简单的 SQL UDF 来进行映射，因为可能值的列表非常多table（在新的 TD 版本中，您可能必须插入一个新的行或添加新的 WHEN 条件):
REPLACE FUNCTION Datatype
(
ColumnType CHAR(2)
)
RETURNS VARCHAR(60)
LANGUAGE SQL
CONTAINS SQL
DETERMINISTIC
SQL SECURITY DEFINER
COLLATION INVOKER
INLINE TYPE 1
RETURN
CASE ColumnType
WHEN 'BF' THEN 'BYTE'
WHEN 'BV' THEN 'VARBYTE'
WHEN 'CF' THEN 'CHAR'
WHEN 'CV' THEN 'VARCHAR'
WHEN 'D ' THEN 'DECIMAL'
WHEN 'DA' THEN 'DATE'
WHEN 'F ' THEN 'FLOAT'
WHEN 'I1' THEN 'BYTEINT'
WHEN 'I2' THEN 'SMALLINT'
WHEN 'I8' THEN 'BIGINT'
WHEN 'I ' THEN 'INTEGER'
WHEN 'AT' THEN 'TIME'
WHEN 'TS' THEN 'TIMESTAMP'
WHEN 'TZ' THEN 'TIME WITH TIME ZONE'
WHEN 'SZ' THEN 'TIMESTAMP WITH TIME ZONE'
WHEN 'YR' THEN 'INTERVAL YEAR'
WHEN 'YM' THEN 'INTERVAL YEAR TO MONTH'
WHEN 'MO' THEN 'INTERVAL MONTH'
WHEN 'DY' THEN 'INTERVAL DAY'
WHEN 'DH' THEN 'INTERVAL DAY TO HOUR'
WHEN 'DM' THEN 'INTERVAL DAY TO MINUTE'
WHEN 'DS' THEN 'INTERVAL DAY TO SECOND'
WHEN 'HR' THEN 'INTERVAL HOUR'
WHEN 'HM' THEN 'INTERVAL HOUR TO MINUTE'
WHEN 'HS' THEN 'INTERVAL HOUR TO SECOND'
WHEN 'MI' THEN 'INTERVAL MINUTE'
WHEN 'MS' THEN 'INTERVAL MINUTE TO SECOND'
WHEN 'SC' THEN 'INTERVAL SECOND'
WHEN 'BO' THEN 'BLOB'
WHEN 'CO' THEN 'CLOB'
WHEN 'PD' THEN 'PERIOD(DATE)'
WHEN 'PM' THEN 'PERIOD(TIMESTAMP WITH TIME ZONE)'
WHEN 'PS' THEN 'PERIOD(TIMESTAMP)'
WHEN 'PT' THEN 'PERIOD(TIME)'
WHEN 'PZ' THEN 'PERIOD(TIME WITH TIME ZONE)'
WHEN 'UT' THEN 'User Defined Datatype'
WHEN '++' THEN 'TD_ANYTYPE'
WHEN 'N' THEN 'NUMBER'
WHEN 'A1' THEN 'ARRAY'
WHEN 'AN' THEN 'ARRAY (multidimensional'
WHEN 'JN' THEN 'JSON'
WHEN 'VA' THEN 'TD_VALIST'
WHEN 'XM' THEN 'XML'
ELSE '<Unknown> '
END;
您也可以使用此 SQL-UDF 来获取完整的数据类型（我没有添加新的 15.10 JSON-变体 BSON & UBJSON，还):
/**********
Returns the datatype of a column as a literal
20111012 initial version - Dieter Noeth
20131010 added TD14.10 ARRAY datatypes - dn
20140812 added TD15 JSON / TD_VALIST datatype - dn
**********/
REPLACE FUNCTION DataTypeString
(
ColumnType CHAR(2),
ColumnLength INT,
DecimalTotalDigits SMALLINT,
DecimalFractionalDigits SMALLINT,
CharType SMALLINT,
ColumnUDTName VARCHAR(128) CHARACTER SET UNICODE
)
RETURNS VARCHAR(60)
LANGUAGE SQL
CONTAINS SQL
DETERMINISTIC
SQL SECURITY DEFINER
COLLATION INVOKER
INLINE TYPE 1
RETURN
CASE ColumnType
WHEN 'BF' THEN 'BYTE(' || TRIM(ColumnLength (FORMAT '-(9)9')) || ')'
WHEN 'BV' THEN 'VARBYTE(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CF' THEN 'CHAR(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CV' THEN 'VARCHAR(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'D ' THEN 'DECIMAL(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ','
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DA' THEN 'DATE'
WHEN 'F ' THEN 'FLOAT'
WHEN 'I1' THEN 'BYTEINT'
WHEN 'I2' THEN 'SMALLINT'
WHEN 'I8' THEN 'BIGINT'
WHEN 'I ' THEN 'INTEGER'
WHEN 'AT' THEN 'TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'TS' THEN 'TIMESTAMP(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'TZ' THEN 'TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE'
WHEN 'SZ' THEN 'TIMESTAMP(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE'
WHEN 'YR' THEN 'INTERVAL YEAR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'YM' THEN 'INTERVAL YEAR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MONTH'
WHEN 'MO' THEN 'INTERVAL MONTH(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DY' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DH' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO HOUR'
WHEN 'DM' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MINUTE'
WHEN 'DS' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'HR' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'HM' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MINUTE'
WHEN 'HS' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'MI' THEN 'INTERVAL MINUTE(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'MS' THEN 'INTERVAL MINUTE(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'SC' THEN 'INTERVAL SECOND(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ','
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'BO' THEN 'BLOB(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CO' THEN 'CLOB(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'PD' THEN 'PERIOD(DATE)'
WHEN 'PM' THEN 'PERIOD(TIMESTAMP('|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE)'
WHEN 'PS' THEN 'PERIOD(TIMESTAMP('|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || '))'
WHEN 'PT' THEN 'PERIOD(TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || '))'
WHEN 'PZ' THEN 'PERIOD(TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE)'
WHEN 'UT' THEN COALESCE(ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN '++' THEN 'TD_ANYTYPE'
WHEN 'N' THEN 'NUMBER(' || CASE WHEN DecimalTotalDigits = -128 THEN '*' ELSE TRIM(DecimalTotalDigits (FORMAT '-(9)9')) END
|| CASE WHEN DecimalFractionalDigits IN (0, -128) THEN '' ELSE ',' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) END
|| ')'
WHEN 'A1' THEN COALESCE('SYSUDTLIB.' || ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN 'AN' THEN COALESCE('SYSUDTLIB.' || ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN 'JN' THEN 'JSON(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'VA' THEN 'TD_VALIST'
WHEN 'XM' THEN 'XML'
ELSE '<Unknown> ' || ColumnType
END
|| CASE
WHEN ColumnType IN ('CV', 'CF', 'CO')
THEN CASE CharType
WHEN 1 THEN ' CHARACTER SET LATIN'
WHEN 2 THEN ' CHARACTER SET UNICODE'
WHEN 3 THEN ' CHARACTER SET KANJISJIS'
WHEN 4 THEN ' CHARACTER SET GRAPHIC'
WHEN 5 THEN ' CHARACTER SET KANJI1'
ELSE ''
END
ELSE ''
END
;
SELECT
DatabaseName,
TableName,
ColumnName,
DataTypeString
(ColumnType,
ColumnLength,
DecimalTotalDigits,
DecimalFractionalDigits,
CharType,
ColumnUDTName),
ColumnType,
ColumnLength,
DecimalTotalDigits,
DecimalFractionalDigits,
CharType
FROM dbc.ColumnsV
WHERE ColumnType IS NOT NULL
ORDER BY 4
ORDER BY 1,2,3
;
我正在使用 Teradata 14.10，但我还没有找到一个系统 table 包含 table 中字段 ColumnTypes 中使用的数据类型的全名 DBC.Columns 和 DBC.ColumnsVX
我在此 forum 上找到了从 ColumnTypes 代码到其全名的映射，但我不想手动进行映射。
SELECT
trim(ColumnName) ||
case columnType
when 'CV' then ' varchar(' || trim(ColumnLength) || ') '
when 'DA' then ' date '
when 'F' then ' float '
when 'N' then ' number '
when 'D' then ' decimal(' || trim(DecimalTotalDigits) || ',' || trim(DecimalFractionalDigits) || ') '
when 'TS' then ' timestamp( ' || trim(ColumnLength) || ') '
when 'AT' then ' time '
when 'CF' then ' char(' || trim(ColumnLength) || ') '
end ColumnDef
FROM DBC.columns s1
WHERE databasename='$database' and tablename='$table';
我不知道 DBC 中有任何 table 包含此信息，但您可以在 Teradata 文档中找到此信息（也许可以将其加载到您自己的 table 中）。
数据字典文档指定了 DBC.Columns 中 ColumnType 的所有可能值。我在这里列出了该列表的开头，以防它有一些帮助，来自 TD 15.10 的文档（第 3 章，第 94 页）。
Value Description
----------------------------------------------------------
++ TD_ANYTYPE
A1 One dimensional ARRAY data type
AT ANSI Time
BF BYTE Fixed
BO Byte Large Object
我没有检查向后兼容性，但它几乎肯定是向后兼容的（没有理由不应该）。同一文档包含大量其他有关大量 DBC 对象中可能值的有用信息。
没有正式的 table，但可以很容易地从 Data Dictionary manual 中提供的映射创建它（这是 DevEx-link 中列表的复制来源） .
但我更喜欢一个简单的 SQL UDF 来进行映射，因为可能值的列表非常多table（在新的 TD 版本中，您可能必须插入一个新的行或添加新的 WHEN 条件):
REPLACE FUNCTION Datatype
(
ColumnType CHAR(2)
)
RETURNS VARCHAR(60)
LANGUAGE SQL
CONTAINS SQL
DETERMINISTIC
SQL SECURITY DEFINER
COLLATION INVOKER
INLINE TYPE 1
RETURN
CASE ColumnType
WHEN 'BF' THEN 'BYTE'
WHEN 'BV' THEN 'VARBYTE'
WHEN 'CF' THEN 'CHAR'
WHEN 'CV' THEN 'VARCHAR'
WHEN 'D ' THEN 'DECIMAL'
WHEN 'DA' THEN 'DATE'
WHEN 'F ' THEN 'FLOAT'
WHEN 'I1' THEN 'BYTEINT'
WHEN 'I2' THEN 'SMALLINT'
WHEN 'I8' THEN 'BIGINT'
WHEN 'I ' THEN 'INTEGER'
WHEN 'AT' THEN 'TIME'
WHEN 'TS' THEN 'TIMESTAMP'
WHEN 'TZ' THEN 'TIME WITH TIME ZONE'
WHEN 'SZ' THEN 'TIMESTAMP WITH TIME ZONE'
WHEN 'YR' THEN 'INTERVAL YEAR'
WHEN 'YM' THEN 'INTERVAL YEAR TO MONTH'
WHEN 'MO' THEN 'INTERVAL MONTH'
WHEN 'DY' THEN 'INTERVAL DAY'
WHEN 'DH' THEN 'INTERVAL DAY TO HOUR'
WHEN 'DM' THEN 'INTERVAL DAY TO MINUTE'
WHEN 'DS' THEN 'INTERVAL DAY TO SECOND'
WHEN 'HR' THEN 'INTERVAL HOUR'
WHEN 'HM' THEN 'INTERVAL HOUR TO MINUTE'
WHEN 'HS' THEN 'INTERVAL HOUR TO SECOND'
WHEN 'MI' THEN 'INTERVAL MINUTE'
WHEN 'MS' THEN 'INTERVAL MINUTE TO SECOND'
WHEN 'SC' THEN 'INTERVAL SECOND'
WHEN 'BO' THEN 'BLOB'
WHEN 'CO' THEN 'CLOB'
WHEN 'PD' THEN 'PERIOD(DATE)'
WHEN 'PM' THEN 'PERIOD(TIMESTAMP WITH TIME ZONE)'
WHEN 'PS' THEN 'PERIOD(TIMESTAMP)'
WHEN 'PT' THEN 'PERIOD(TIME)'
WHEN 'PZ' THEN 'PERIOD(TIME WITH TIME ZONE)'
WHEN 'UT' THEN 'User Defined Datatype'
WHEN '++' THEN 'TD_ANYTYPE'
WHEN 'N' THEN 'NUMBER'
WHEN 'A1' THEN 'ARRAY'
WHEN 'AN' THEN 'ARRAY (multidimensional'
WHEN 'JN' THEN 'JSON'
WHEN 'VA' THEN 'TD_VALIST'
WHEN 'XM' THEN 'XML'
ELSE '<Unknown> '
END;
您也可以使用此 SQL-UDF 来获取完整的数据类型（我没有添加新的 15.10 JSON-变体 BSON & UBJSON，还):
/**********
Returns the datatype of a column as a literal
20111012 initial version - Dieter Noeth
20131010 added TD14.10 ARRAY datatypes - dn
20140812 added TD15 JSON / TD_VALIST datatype - dn
**********/
REPLACE FUNCTION DataTypeString
(
ColumnType CHAR(2),
ColumnLength INT,
DecimalTotalDigits SMALLINT,
DecimalFractionalDigits SMALLINT,
CharType SMALLINT,
ColumnUDTName VARCHAR(128) CHARACTER SET UNICODE
)
RETURNS VARCHAR(60)
LANGUAGE SQL
CONTAINS SQL
DETERMINISTIC
SQL SECURITY DEFINER
COLLATION INVOKER
INLINE TYPE 1
RETURN
CASE ColumnType
WHEN 'BF' THEN 'BYTE(' || TRIM(ColumnLength (FORMAT '-(9)9')) || ')'
WHEN 'BV' THEN 'VARBYTE(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CF' THEN 'CHAR(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CV' THEN 'VARCHAR(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'D ' THEN 'DECIMAL(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ','
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DA' THEN 'DATE'
WHEN 'F ' THEN 'FLOAT'
WHEN 'I1' THEN 'BYTEINT'
WHEN 'I2' THEN 'SMALLINT'
WHEN 'I8' THEN 'BIGINT'
WHEN 'I ' THEN 'INTEGER'
WHEN 'AT' THEN 'TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'TS' THEN 'TIMESTAMP(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'TZ' THEN 'TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE'
WHEN 'SZ' THEN 'TIMESTAMP(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE'
WHEN 'YR' THEN 'INTERVAL YEAR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'YM' THEN 'INTERVAL YEAR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MONTH'
WHEN 'MO' THEN 'INTERVAL MONTH(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DY' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'DH' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO HOUR'
WHEN 'DM' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MINUTE'
WHEN 'DS' THEN 'INTERVAL DAY(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'HR' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'HM' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO MINUTE'
WHEN 'HS' THEN 'INTERVAL HOUR(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'MI' THEN 'INTERVAL MINUTE(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')'
WHEN 'MS' THEN 'INTERVAL MINUTE(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ')' || ' TO SECOND('
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'SC' THEN 'INTERVAL SECOND(' || TRIM(DecimalTotalDigits (FORMAT '-(9)9')) || ','
|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')'
WHEN 'BO' THEN 'BLOB(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'CO' THEN 'CLOB(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'PD' THEN 'PERIOD(DATE)'
WHEN 'PM' THEN 'PERIOD(TIMESTAMP('|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE)'
WHEN 'PS' THEN 'PERIOD(TIMESTAMP('|| TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || '))'
WHEN 'PT' THEN 'PERIOD(TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || '))'
WHEN 'PZ' THEN 'PERIOD(TIME(' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) || ')' || ' WITH TIME ZONE)'
WHEN 'UT' THEN COALESCE(ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN '++' THEN 'TD_ANYTYPE'
WHEN 'N' THEN 'NUMBER(' || CASE WHEN DecimalTotalDigits = -128 THEN '*' ELSE TRIM(DecimalTotalDigits (FORMAT '-(9)9')) END
|| CASE WHEN DecimalFractionalDigits IN (0, -128) THEN '' ELSE ',' || TRIM(DecimalFractionalDigits (FORMAT '-(9)9')) END
|| ')'
WHEN 'A1' THEN COALESCE('SYSUDTLIB.' || ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN 'AN' THEN COALESCE('SYSUDTLIB.' || ColumnUDTName, '<Unknown> ' || ColumnType)
WHEN 'JN' THEN 'JSON(' || TRIM(ColumnLength (FORMAT 'Z(9)9')) || ')'
WHEN 'VA' THEN 'TD_VALIST'
WHEN 'XM' THEN 'XML'
ELSE '<Unknown> ' || ColumnType
END
|| CASE
WHEN ColumnType IN ('CV', 'CF', 'CO')
THEN CASE CharType
WHEN 1 THEN ' CHARACTER SET LATIN'
WHEN 2 THEN ' CHARACTER SET UNICODE'
WHEN 3 THEN ' CHARACTER SET KANJISJIS'
WHEN 4 THEN ' CHARACTER SET GRAPHIC'
WHEN 5 THEN ' CHARACTER SET KANJI1'
ELSE ''
END
ELSE ''
END
;
SELECT
DatabaseName,
TableName,
ColumnName,
DataTypeString
(ColumnType,
ColumnLength,
DecimalTotalDigits,
DecimalFractionalDigits,
CharType,
ColumnUDTName),
ColumnType,
ColumnLength,
DecimalTotalDigits,
DecimalFractionalDigits,
CharType
FROM dbc.ColumnsV
WHERE ColumnType IS NOT NULL
ORDER BY 4
ORDER BY 1,2,3
;