Oracle 12cR2 DM

Oracle DM_QGEN Version 12.2.0.1

General Information

Library Note

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Purpose Undocumented support for Data Mining

AUTHID CURRENT_USER

Dependencies

DBMS_ASSERT	DBMS_PREDICTIVE_ANALYTICS	DM_XFORM
DBMS_DATA_MINING	DBMS_STANDARD	DMP_SEC
DBMS_DATA_MINING_TRANSFORM	DBMS_UTILITY	DMP_SYS
DBMS_DM_MODEL_EXP	DM$RQMOD_DETAILIMPL	ODM_UTIL
DBMS_DM_UTIL

Documented No

First Available Not known

Security Model Owned by SYS with no privileges granted

Source {ORACLE_HOME}/rdbms/admin/prvtdmmi.plb

Subprograms

CLOB_LITERAL	SQLN2LIT	SQLN2SQL
EXT_QUOTE	SQLN2QSQL	TO_LITERAL
SQLN2BND

CLOB_LITERAL

Enapsulates a string in single quotes and prepends the literal "to_clob(null)||" dm_qgen.clob_literal(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       pVC VARCHAR2(4000) := 'this is a test string';

       rVC VARCHAR2(4000);

      BEGIN

        rVC := dm_qgen.clob_literal(pVC);

        dbms_output.put_line(rVC);

      END;

      /

      to_clob(null)||'this is a test string'

      

      PL/SQL procedure successfully completed.

EXT_QUOTE (new 12.2)

Seems to act as a NO-OP. Appears to make no changes to any string submitted dm_qgen.ext_quote(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       retVal VARCHAR2(240);

      BEGIN

        retVal := dm_qgen.ext_quote('"TE ST''');

        dbms_output.put_line(retVal);

      END;

      /

SQLN2BND (new 12.2)

Upper cases the string and returns it unchanged if the string passes internal tests of which one is that the string does not contain spaces dm_qgen.sqln2bnd(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       retVal VARCHAR2(240);

      BEGIN

        retVal := dm_qgen.sqln2bnd('TExST');

        dbms_output.put_line(retVal);

      END;

      /

SQLN2LIT (new 12.2)

Returns the string enclosed in single quotes dm_qgen.sqln2lit(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       retVal VARCHAR2(240);

      BEGIN

        retVal := dm_qgen.sqln2lit('TEST');

        dbms_output.put_line(retVal);

      END;

      /

SQLN2QSQL (new 12.2)

Appends dot sname to the value and encloses the combination in double quotes. Identical to DBMS_ASSERT.ENQUOTE_LITERAL. dm_qgen.sqln2lit( p_val IN VARCHAR2, p_sname IN VARCHAR2) RETURN VARCHAR2;

SQL> DECLARE

        2   retVal VARCHAR2(240);

        3  BEGIN

        4    retVal := dm_qgen.sqln2qsql('TEST', USER);

        5    dbms_output.put_line(retVal);

        6  END;

        7  /

      "TEST"."SYS"

SQLN2SQL (new 12.2)

Returns a string enclosed in double quotes. Identical to DBMS_ASSERT.ENQUOTE_NAME. dm_qgen.sqln2sql(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       retVal VARCHAR2(240);

      BEGIN

        retVal := dm_qgen.sqln2sql('TEST');

        dbms_output.put_line(retVal);

      END;

      /

TO_LITERAL

Undocumented

Overload 1 dm_qgen.to_literal( p_val IN NUMBER, p_paren_flag IN BOOLEAN) RETURN VARCHAR2;

DECLARE

       bf     BOOLEAN := FALSE;

       bt     BOOLEAN := TRUE;

       retVal VARCHAR2(30);

      BEGIN

        retVal := dm_qgen.to_literal(-1, bf);

        dbms_output.put_line(retVal);

      

        retVal := dm_qgen.to_literal(-1, bt);

        dbms_output.put_line(retVal);

      END;

      /

Overload 2 dm_qgen.to_literal( p_val IN BINARY_DOUBLE, p_paren_flag IN BOOLEAN) RETURN VARCHAR2;

DECLARE

       bf     BOOLEAN := FALSE;

       bt     BOOLEAN := TRUE;

       retVal VARCHAR2(30);

      BEGIN

        retVal := dm_qgen.to_literal(-1, bf);

        dbms_output.put_line(retVal);

      

        retVal := dm_qgen.to_literal(-1, bt);

        dbms_output.put_line(retVal);

      END;

      /

Overload 3 dm_qgen.to_literal( p_val IN BINARY_FLOAT, p_paren_flag IN BOOLEAN) RETURN VARCHAR2;

DECLARE

       bf     BOOLEAN := FALSE;

       bt     BOOLEAN := TRUE;

       retVal VARCHAR2(30);

      BEGIN

        retVal := dm_qgen.to_literal(-1, bf);

        dbms_output.put_line(retVal);

      

        retVal := dm_qgen.to_literal(-1, bt);

        dbms_output.put_line(retVal);

      END;

      /

Overload 4 dm_qgen.to_literal(p_val IN VARCHAR2) RETURN VARCHAR2;

DECLARE

       retVal VARCHAR2(30);

      BEGIN

        retVal := dm_qgen.to_literal('This is essentially a NOOP');

        dbms_output.put_line(retVal);

      END;

      /