解密dbms_rowid -for 10g
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PACKAGE BODY dbms_rowid IS PROCEDURE ROWIDBUILD(ROW_ID OUT ROWID, TYPE IN NUMBER, OBJNUM IN NUMBER, FILENUM IN NUMBER, BLOCKNUM IN NUMBER, ROWNUM IN NUMBER); PRAGMA INTERFACE(C, ROWIDBUILD); PROCEDURE ROWIDINFO(ROW_ID IN ROWID, TYPE OUT NUMBER, OBJNUM OUT NUMBER, FILENUM OUT NUMBER, BLOCKNUM OUT NUMBER, ROWNUM OUT NUMBER, TS_TYPE_IN IN VARCHAR2 DEFAULT 'SMALLFILE'); PRAGMA INTERFACE(C, ROWIDINFO); PROCEDURE ROWIDAFN(ROW_ID IN ROWID, SCHEMA_NAME IN VARCHAR2, OBJECT_NAME IN VARCHAR2, ABSOLUTE_FNO OUT NUMBER); PRAGMA INTERFACE(C, ROWIDAFN); PROCEDURE ROWIDCNVTE(NEW_ROWID OUT ROWID, OLD_ROWID IN ROWID, SCHEMA_NAME IN VARCHAR2, OBJECT_NAME IN VARCHAR2, CONVERSION_TYPE IN INTEGER); PRAGMA INTERFACE(C, ROWIDCNVTE); PROCEDURE ROWIDCNVTR(NEW_ROWID OUT ROWID, OLD_ROWID IN ROWID, CONVERSION_TYPE IN INTEGER); PRAGMA INTERFACE(C, ROWIDCNVTR); FUNCTION ROWID_CREATE(ROWID_TYPE IN NUMBER, OBJECT_NUMBER IN NUMBER, RELATIVE_FNO IN NUMBER, BLOCK_NUMBER IN NUMBER, ROW_NUMBER IN NUMBER) RETURN ROWID IS ROW_ID ROWID; BEGIN ROWIDBUILD(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER); RETURN(ROW_ID); END; PROCEDURE ROWID_INFO(ROWID_IN IN ROWID, ROWID_TYPE OUT NUMBER, OBJECT_NUMBER OUT NUMBER, RELATIVE_FNO OUT NUMBER, BLOCK_NUMBER OUT NUMBER, ROW_NUMBER OUT NUMBER, TS_TYPE_IN IN VARCHAR2 DEFAULT 'SMALLFILE') IS BEGIN ROWIDINFO(ROWID_IN, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER, TS_TYPE_IN); END; FUNCTION ROWID_TYPE(ROW_ID IN ROWID) RETURN NUMBER IS ROWID_TYPE NUMBER; OBJECT_NUMBER NUMBER; RELATIVE_FNO NUMBER; BLOCK_NUMBER NUMBER; ROW_NUMBER NUMBER; BEGIN ROWIDINFO(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER); RETURN(ROWID_TYPE); END; FUNCTION ROWID_OBJECT(ROW_ID IN ROWID) RETURN NUMBER IS ROWID_TYPE NUMBER; OBJECT_NUMBER NUMBER; RELATIVE_FNO NUMBER; BLOCK_NUMBER NUMBER; ROW_NUMBER NUMBER; BEGIN ROWIDINFO(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER); RETURN(OBJECT_NUMBER); END; FUNCTION ROWID_RELATIVE_FNO(ROW_ID IN ROWID, TS_TYPE_IN IN VARCHAR2 DEFAULT 'SMALLFILE') RETURN NUMBER IS ROWID_TYPE NUMBER; OBJECT_NUMBER NUMBER; RELATIVE_FNO NUMBER; BLOCK_NUMBER NUMBER; ROW_NUMBER NUMBER; BEGIN ROWIDINFO(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER, TS_TYPE_IN); RETURN(RELATIVE_FNO); END; FUNCTION ROWID_BLOCK_NUMBER(ROW_ID IN ROWID, TS_TYPE_IN IN VARCHAR2 DEFAULT 'SMALLFILE') RETURN NUMBER IS ROWID_TYPE NUMBER; OBJECT_NUMBER NUMBER; RELATIVE_FNO NUMBER; BLOCK_NUMBER NUMBER; ROW_NUMBER NUMBER; BEGIN ROWIDINFO(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER, TS_TYPE_IN); RETURN(BLOCK_NUMBER); END; FUNCTION ROWID_ROW_NUMBER(ROW_ID IN ROWID) RETURN NUMBER IS ROWID_TYPE NUMBER; OBJECT_NUMBER NUMBER; RELATIVE_FNO NUMBER; BLOCK_NUMBER NUMBER; ROW_NUMBER NUMBER; BEGIN ROWIDINFO(ROW_ID, ROWID_TYPE, OBJECT_NUMBER, RELATIVE_FNO, BLOCK_NUMBER, ROW_NUMBER); RETURN(ROW_NUMBER); END; FUNCTION ROWID_TO_ABSOLUTE_FNO(ROW_ID IN ROWID, SCHEMA_NAME IN VARCHAR2, OBJECT_NAME IN VARCHAR2) RETURN NUMBER IS ABSOLUTE_FNO NUMBER; BEGIN ROWIDAFN(ROW_ID, SCHEMA_NAME, OBJECT_NAME, ABSOLUTE_FNO); RETURN(ABSOLUTE_FNO); END; FUNCTION ROWID_TO_EXTENDED(OLD_ROWID IN ROWID, SCHEMA_NAME IN VARCHAR2, OBJECT_NAME IN VARCHAR2, CONVERSION_TYPE IN INTEGER) RETURN ROWID IS NEW_ROWID ROWID; BEGIN ROWIDCNVTE(NEW_ROWID, OLD_ROWID, SCHEMA_NAME, OBJECT_NAME, CONVERSION_TYPE); RETURN(NEW_ROWID); END; FUNCTION ROWID_TO_RESTRICTED(OLD_ROWID IN ROWID, CONVERSION_TYPE IN INTEGER) RETURN ROWID IS NEW_ROWID ROWID; BEGIN ROWIDCNVTR(NEW_ROWID, OLD_ROWID, CONVERSION_TYPE); RETURN(NEW_ROWID); END; FUNCTION ROWID_VERIFY(ROWID_IN IN ROWID, SCHEMA_NAME IN VARCHAR2, OBJECT_NAME IN VARCHAR2, CONVERSION_TYPE IN INTEGER) RETURN NUMBER IS NEW_ROWID ROWID; BEGIN ROWIDCNVTE(NEW_ROWID, ROWID_IN, SCHEMA_NAME, OBJECT_NAME, CONVERSION_TYPE); RETURN(0); EXCEPTION WHEN ROWID_INVALID OR ROWID_BAD_BLOCK THEN RETURN(1); END; END; |
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