Update Function GET_DESCRIPTOR

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2026-02-25 23:01:02 +00:00
parent c450105cb9
commit 380edb7e32

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@@ -1 +1,305 @@
@\@^@ SET PATH *LIBL ;
CREATE OR REPLACE FUNCTION CISTOOLS.GET_DESCRIPTOR (
SQLSTMT VARCHAR(32000) )
RETURNS TABLE (
COLUMNCARDINALITY BIGINT ,
DATETIMECODE INTEGER ,
BASEDBNAME VARCHAR(128) ,
BASECOLUMNNAME VARCHAR(128) ,
BASELIBRARYNAME VARCHAR(128) ,
BASETABLENAME VARCHAR(128) ,
COLUMNCCSID INTEGER ,
COLUMNDBNAME VARCHAR(128) ,
COLUMNGENERATED INTEGER ,
COLUMNGENERATIONTYPE INTEGER ,
COLUMNHIDDEN INTEGER ,
COLUMNNAME VARCHAR(128) ,
COLUMNROWCHANGE INTEGER ,
COLUMNLIBNAME VARCHAR(128) ,
COLUMNTBLNAME VARCHAR(128) ,
COLUMNALLOWUPDATE INTEGER ,
CORRELATIONNAME VARCHAR(128) ,
CURSORNAME VARCHAR(128) ,
COLUMNLABEL VARCHAR(60) ,
PARAMNAME VARCHAR(128) ,
RESULTSETROW BIGINT ,
SYSTEMCOLUMNNAME CHAR(10) ,
KEYMEMBER INTEGER ,
COLUMNLENGTH INTEGER ,
COLUMNLEVEL INTEGER ,
OBJECTNAME VARCHAR(128) ,
ISNULLABLE INTEGER ,
OCTETLENGTH INTEGER ,
PARAMMODE INTEGER ,
PARAMORDPOS INTEGER ,
ORDINALPOS INTEGER ,
PARAMSPECIFICDB VARCHAR(128) ,
PARAMSPECIFICTABLE VARCHAR(128) ,
PARAMSPECIFICLIB VARCHAR(128) ,
PRECISION INTEGER ,
RETURNARRAYSIZE INTEGER ,
RETURNLENGTH INTEGER ,
RETURNOCTETLENGTH INTEGER ,
SCALE INTEGER ,
DATATYPE INTEGER ,
SQLTYPE VARCHAR(128) ,
ISUNNAMED INTEGER ,
UDTCATALOG VARCHAR(128) ,
UDTNAME VARCHAR(128) ,
UDTSCHEMA VARCHAR(128) ,
UDTCODE VARCHAR(128) )
LANGUAGE SQL
SPECIFIC CISTOOLS.GET_DESCRIPTOR
NOT DETERMINISTIC
READS SQL DATA
CALLED ON NULL INPUT
NO EXTERNAL ACTION
CONCURRENT ACCESS RESOLUTION DEFAULT
SET OPTION ALWBLK = *ALLREAD ,
ALWCPYDTA = *OPTIMIZE ,
COMMIT = *NONE ,
DBGVIEW = *SOURCE ,
DECRESULT = (31, 31, 00) ,
DYNDFTCOL = *NO ,
DYNUSRPRF = *OWNER ,
OPTLOB = *YES ,
SQLCURRULE = *STD ,
SRTSEQ = *HEX
BEGIN
DECLARE STMTHANDLE BIGINT ;
DECLARE DESCHANDLE VARCHAR ( 128 ) ;
DECLARE VCARDINALITY BIGINT DEFAULT 0 ;
DECLARE VDATETIMECODE INTEGER DEFAULT 0 ;
DECLARE VBASEDBNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VBASECOLUMNNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VBASELIBRARYNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VBASETABLENAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCCSID INTEGER DEFAULT 0 ;
DECLARE VCOLUMNDBNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCOLUMNGENERATED INTEGER DEFAULT 0 ;
DECLARE VCOLUMNGENERATIONTYPE INTEGER DEFAULT 0 ;
DECLARE VCOLUMNHIDDEN INTEGER DEFAULT 0 ;
DECLARE VCOLUMNNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCOLUMNROWCHANGE INTEGER DEFAULT 0 ;
DECLARE VCOLUMNLIBNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCOLUMNTBLNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCOLUMNALLOWUPDATE INTEGER DEFAULT 0 ;
DECLARE VCORRELATIONNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VCURSORNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VLABEL VARCHAR ( 60 ) DEFAULT ' ' ;
DECLARE VPARAMNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VRESULTSETROW BIGINT DEFAULT 0 ;
DECLARE VSYSTEMCOLUMNNAME CHAR ( 10 ) DEFAULT ' ' ;
DECLARE VKEYMEMBER INTEGER DEFAULT 0 ;
DECLARE VLENGTH INTEGER DEFAULT 0 ;
DECLARE VLEVEL INTEGER DEFAULT 0 ;
DECLARE VOBJECTNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VISNULLABLE INTEGER DEFAULT 0 ;
DECLARE VOCTETLENGTH INTEGER DEFAULT 0 ;
DECLARE VPARAMMODE INTEGER DEFAULT 0 ;
DECLARE VPARAMORDPOS INTEGER DEFAULT 0 ;
DECLARE VORDINALPOS INTEGER DEFAULT 0 ;
DECLARE VPARAMSPECIFICDB VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VPARAMSPECIFICTABLE VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VPARAMSPECIFICLIB VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VPRECISION INTEGER DEFAULT 0 ;
DECLARE VRETURNARRAYSIZE INTEGER DEFAULT 0 ;
DECLARE VRETURNLENGTH INTEGER DEFAULT 0 ;
DECLARE VRETURNOCTETLENGTH INTEGER DEFAULT 0 ;
DECLARE VSCALE INTEGER DEFAULT 0 ;
DECLARE VDATATYPE INTEGER DEFAULT 0 ;
DECLARE VSQLTYPE VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VISUNNAMED INTEGER DEFAULT 0 ;
DECLARE VUDTCATALOG VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VUDTNAME VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VUDTSCHEMA VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE VUDTCODE VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE I INTEGER DEFAULT 1 ;
DECLARE TOKEN VARCHAR ( 128 ) DEFAULT ' ' ;
DECLARE RTNSQLCODE INT ;
DECLARE COLCOUNT INTEGER ;
DECLARE SQLCODE INTEGER DEFAULT 0 ;
DECLARE SQLSTATE CHAR ( 5 ) DEFAULT '00000' ;
DECLARE CONTINUE HANDLER FOR SQLSTATE '22501' , SQLSTATE '33000'
BEGIN
DEALLOCATE DESCRIPTOR LOCAL DESCHANDLE ;
GET DIAGNOSTICS CONDITION 1 TOKEN = DB2_ORDINAL_TOKEN_2 ;
SET COLCOUNT = TOKEN ;
ALLOCATE DESCRIPTOR LOCAL DESCHANDLE WITH MAX COLCOUNT ;
DESCRIBE STMTHANDLE USING DESCRIPTOR LOCAL DESCHANDLE ;
SET I = 1 ;
END ;
SET DESCHANDLE = 'Descr' || HEX ( GENERATE_UNIQUE ( ) ) ;
PREPARE STMTHANDLE FROM SQLSTMT ;
ALLOCATE DESCRIPTOR LOCAL DESCHANDLE WITH MAX 1024 ;
DESCRIBE STMTHANDLE USING DESCRIPTOR LOCAL DESCHANDLE ;
GET DESCRIPTOR LOCAL DESCHANDLE COLCOUNT = COUNT ;
WHILE I <= COLCOUNT DO
GET DESCRIPTOR LOCAL DESCHANDLE
VALUE I
VCARDINALITY = CARDINALITY ,
VDATETIMECODE = DATETIME_INTERVAL_CODE ,
VBASEDBNAME = DB2_BASE_CATALOG_NAME ,
VBASECOLUMNNAME = DB2_BASE_COLUMN_NAME ,
VBASELIBRARYNAME = DB2_BASE_SCHEMA_NAME ,
VBASETABLENAME = DB2_BASE_TABLE_NAME , VCCSID = DB2_CCSID ,
VCOLUMNDBNAME = DB2_COLUMN_CATALOG_NAME ,
VCOLUMNGENERATED = DB2_COLUMN_GENERATED ,
VCOLUMNGENERATIONTYPE = DB2_COLUMN_GENERATION_TYPE ,
VCOLUMNHIDDEN = DB2_COLUMN_HIDDEN ,
VCOLUMNNAME = DB2_COLUMN_NAME ,
VCOLUMNROWCHANGE = DB2_COLUMN_ROW_CHANGE ,
VCOLUMNLIBNAME = DB2_COLUMN_SCHEMA_NAME ,
VCOLUMNTBLNAME = DB2_COLUMN_TABLE_NAME ,
VCOLUMNALLOWUPDATE = DB2_COLUMN_UPDATABILITY ,
VCORRELATIONNAME = DB2_CORRELATION_NAME ,
VCURSORNAME = DB2_CURSOR_NAME , VLABEL = DB2_LABEL ,
VPARAMNAME = DB2_PARAMETER_NAME ,
VRESULTSETROW = DB2_RESULT_SET_ROWS ,
VSYSTEMCOLUMNNAME = DB2_SYSTEM_COLUMN_NAME ,
VKEYMEMBER = KEY_MEMBER , VLENGTH = LENGTH , VLEVEL = LEVEL ,
VOBJECTNAME = NAME , VISNULLABLE = NULLABLE ,
VOCTETLENGTH = OCTET_LENGTH , VPARAMMODE = PARAMETER_MODE ,
VPARAMORDPOS = PARAMETER_ORDINAL_POSITION ,
VPARAMSPECIFICDB = PARAMETER_SPECIFIC_CATALOG ,
VPARAMSPECIFICTABLE = PARAMETER_SPECIFIC_NAME ,
VPARAMSPECIFICLIB = PARAMETER_SPECIFIC_SCHEMA ,
VPRECISION = PRECISION ,
VRETURNARRAYSIZE = RETURNED_CARDINALITY ,
VRETURNLENGTH = RETURNED_LENGTH ,
VRETURNOCTETLENGTH = RETURNED_OCTET_LENGTH , VSCALE = SCALE ,
VDATATYPE = TYPE , VISUNNAMED = UNNAMED ,
VUDTCATALOG = USER_DEFINED_TYPE_CATALOG ,
VUDTNAME = USER_DEFINED_TYPE_NAME ,
VUDTSCHEMA = USER_DEFINED_TYPE_SCHEMA ,
VUDTCODE = USER_DEFINED_TYPE_CODE ;
SET VLABEL = CISTOOLS . STRIP_SPACES ( VLABEL ) ;
SET VORDINALPOS = I ;
-- This code block maps data types to their equivalent SQL types
-- Standardize variable names
IF VDATATYPE = 5 THEN
SET VSQLTYPE = 'SQL_SMALLINT' ;
SET VLENGTH = 2 ;
SET VOCTETLENGTH = 2 ;
ELSEIF VDATATYPE = 4 THEN
SET VSQLTYPE = 'SQL_INTEGER' ;
SET VLENGTH = 4 ;
SET VOCTETLENGTH = 4 ;
ELSEIF VDATATYPE = 25 THEN
SET VSQLTYPE = 'SQL_BIGINT' ;
SET VLENGTH = 8 ;
SET VOCTETLENGTH = 8 ;
ELSEIF VDATATYPE = 3 THEN
SET VSQLTYPE = 'SQL_DECIMAL' ;
SET VLENGTH = ( VPRECISION / 2 ) + 1 ;
SET VOCTETLENGTH = ( VPRECISION / 2 ) + 1 ;
ELSEIF VDATATYPE = 2 THEN
SET VSQLTYPE = 'SQL_NUMERIC' ;
ELSEIF VDATATYPE = 7 THEN
SET VSQLTYPE = 'SQL_REAL' ;
SET VLENGTH = 4 ;
SET VOCTETLENGTH = 4 ;
ELSEIF VDATATYPE = 8 THEN
SET VSQLTYPE = 'SQL_DECFLOAT' ;
SET VLENGTH = 8 ;
SET VOCTETLENGTH = 8 ;
ELSEIF VDATATYPE = - 360 THEN
SET VSQLTYPE = 'SQL_DECFLOAT' ;
ELSEIF VDATATYPE = 1 THEN
SET VSQLTYPE = 'SQL_CHARACTER' ;
ELSEIF VDATATYPE = 12 THEN
SET VSQLTYPE = 'SQL_VARCHAR' ;
ELSEIF VDATATYPE = 40 THEN
SET VSQLTYPE = 'SQL_CLOB' ;
ELSEIF VDATATYPE = - 95 THEN
SET VSQLTYPE = 'SQL_GRAPHIC' ;
SET VOCTETLENGTH = VLENGTH * 2 ;
ELSEIF VDATATYPE = - 96 THEN
SET VSQLTYPE = 'SQL_VARGRAPHIC' ;
SET VOCTETLENGTH = VLENGTH * 2 ;
ELSEIF VDATATYPE = - 350 THEN
SET VSQLTYPE = 'SQL_DBCLOB' ;
SET VOCTETLENGTH = VLENGTH * 2 ;
ELSEIF VDATATYPE = - 2 THEN
SET VSQLTYPE = 'SQL_BINARY' ;
ELSEIF VDATATYPE = - 3 THEN
SET VSQLTYPE = 'SQL_VARBINARY' ;
ELSEIF VDATATYPE = 30 THEN
SET VSQLTYPE = 'SQL_BLOB' ;
ELSEIF VDATATYPE = 9 THEN
IF VDATETIMECODE = 1 THEN
SET VSQLTYPE = 'SQL_DATE' ;
SET VLENGTH = 10 ;
SET VOCTETLENGTH = 10 ;
ELSEIF VDATETIMECODE = 2 THEN
SET VSQLTYPE = 'SQL_TIME' ;
SET VLENGTH = 8 ;
SET VOCTETLENGTH = 8 ;
ELSEIF VDATETIMECODE = 3 THEN
SET VSQLTYPE = 'SQL_TIMESTAMP' ;
SET VLENGTH = 26 ;
SET VOCTETLENGTH = 26 ;
END IF ;
ELSEIF VDATATYPE = 70 THEN
SET VSQLTYPE = 'SQL_DATALINK' ;
ELSEIF VDATATYPE = - 904 THEN
SET VSQLTYPE = 'SQL_ROWID' ;
ELSEIF VDATATYPE = 137 THEN
SET VSQLTYPE = 'SQL_XML' ;
ELSEIF VDATATYPE = - 400 THEN
SET VSQLTYPE = 'SQL_GRAPHIC' ;
SET VOCTETLENGTH = VLENGTH * 2 ;
ELSEIF VDATATYPE = - 916 THEN
SET VSQL_TYPE = 'SQL_BLOB' ;
SET VLENGTH = 267 ;
SET VOCTETLENGTH = 267 ;
ELSEIF VDATATYPE = - 920 THEN
SET VSQL_TYPE = 'SQL_CLOB' ;
SET VLENGTH = 267 ;
SET VOCTETLENGTH = 267 ;
ELSEIF VDATATYPE = - 924 THEN
SET VSQL_TYPE = 'SQL_DBCLOB' ;
SET VLENGTH = 267 ;
SET VOCTETLENGTH = 267 ;
ELSEIF VDATATYPE = - 972 THEN
SET VSQL_TYPE = 'SQL_RESULT_SET_LOCATOR' ;
SET VLENGTH = 8 ;
SET VOCTETLENGTH = 8 ;
ELSE
SET VSQLTYPE = 'UNKNOWN TYPE' ;
END IF ;
PIPE (
VCARDINALITY ,
VDATETIMECODE , VBASEDBNAME , VBASECOLUMNNAME , VBASELIBRARYNAME ,
VBASETABLENAME , VCCSID , VCOLUMNDBNAME , VCOLUMNGENERATED ,
VCOLUMNGENERATIONTYPE , VCOLUMNHIDDEN , VCOLUMNNAME ,
VCOLUMNROWCHANGE , VCOLUMNLIBNAME , VCOLUMNTBLNAME ,
VCOLUMNALLOWUPDATE , VCORRELATIONNAME , VCURSORNAME , VLABEL ,
VPARAMNAME , VRESULTSETROW , VSYSTEMCOLUMNNAME , VKEYMEMBER ,
VLENGTH , VLEVEL , VOBJECTNAME , VISNULLABLE , VOCTETLENGTH ,
VPARAMMODE , VPARAMORDPOS , VORDINALPOS , VPARAMSPECIFICDB ,
VPARAMSPECIFICTABLE , VPARAMSPECIFICLIB , VPRECISION ,
VRETURNARRAYSIZE , VRETURNLENGTH , VRETURNOCTETLENGTH , VSCALE ,
VDATATYPE , VSQLTYPE , VISUNNAMED , VUDTCATALOG , VUDTNAME ,
VUDTSCHEMA , VUDTCODE ) ;
SET I = I + 1 ;
END WHILE ;
DEALLOCATE DESCRIPTOR LOCAL DESCHANDLE ;
RETURN ;
END ;
COMMENT ON PARAMETER SPECIFIC FUNCTION CISTOOLS.GET_DESCRIPTOR
( SQLSTMT IS 'SQL Statement' ) ;
LABEL ON SPECIFIC FUNCTION CISTOOLS.GET_DESCRIPTOR
IS 'Get Descriptor' ;
GRANT ALTER , EXECUTE
ON SPECIFIC FUNCTION CISTOOLS.GET_DESCRIPTOR
TO AMAPICS WITH GRANT OPTION ;
GRANT EXECUTE
ON SPECIFIC FUNCTION CISTOOLS.GET_DESCRIPTOR
TO PUBLIC ;