MINI MINI MANI MO
Rem
Rem $Header: rdbms/admin/dbmscmp.sql /main/4 2014/02/20 12:45:42 surman Exp $
Rem
Rem dbmscmp.sql
Rem
Rem Copyright (c) 2006, 2013, Oracle and/or its affiliates.
Rem All rights reserved.
Rem
Rem NAME
Rem dbmscmp.sql - package for data CoMParison
Rem
Rem DESCRIPTION
Rem Package for data comparison
Rem
Rem NOTES
Rem
Rem
Rem BEGIN SQL_FILE_METADATA
Rem SQL_SOURCE_FILE: rdbms/admin/dbmscmp.sql
Rem SQL_SHIPPED_FILE: rdbms/admin/dbmscmp.sql
Rem SQL_PHASE: DBMSCMP
Rem SQL_STARTUP_MODE: NORMAL
Rem SQL_IGNORABLE_ERRORS: NONE
Rem SQL_CALLING_FILE: rdbms/admin/dbmsstr.sql
Rem END SQL_FILE_METADATA
Rem
Rem MODIFIED (MM/DD/YY)
Rem surman 12/29/13 - 13922626: Update SQL metadata
Rem surman 04/12/12 - 13615447: Add SQL patching tags
Rem juyuan 11/15/06 - bug-5646059: add parameters index_schema_name
Rem and index_name for create_comparison
Rem rvenkate 01/26/06 - Created
Rem
@@?/rdbms/admin/sqlsessstart.sql
--
-- External package for comparison administration
--
CREATE OR REPLACE PACKAGE dbms_comparison AUTHID CURRENT_USER AS
/****************************************************************************/
/* Defines For Constants.
/****************************************************************************/
--
-- Compare Mode:
--
CMP_COMPARE_MODE_OBJECT CONSTANT VARCHAR2(30) := 'OBJECT';
--
-- Scan Mode:
--
CMP_SCAN_MODE_FULL CONSTANT VARCHAR2(30) := 'FULL';
CMP_SCAN_MODE_RANDOM CONSTANT VARCHAR2(30) := 'RANDOM';
CMP_SCAN_MODE_CYCLIC CONSTANT VARCHAR2(30) := 'CYCLIC';
CMP_SCAN_MODE_CUSTOM CONSTANT VARCHAR2(30) := 'CUSTOM';
--
-- dml options
--
CMP_CONVERGE_LOCAL_WINS CONSTANT VARCHAR2(30) := 'LOCAL';
CMP_CONVERGE_REMOTE_WINS CONSTANT VARCHAR2(30) := 'REMOTE';
-- Null value's substitution value
CMP_NULL_VALUE_DEF CONSTANT VARCHAR2(100) := 'ORA$STREAMS$NV';
-- Other Default values
CMP_MAX_NUM_BUCKETS CONSTANT PLS_INTEGER := 1000;
CMP_MIN_ROWS_IN_BUCKET CONSTANT PLS_INTEGER := 10000;
/****************************************************************************/
/* Public APIs below.
/****************************************************************************/
/*
*
* create_comparison: Create a comparison.
*
* NOTE:
* Objects on different databases have to be of the same shape.
* The object must have an index on a number column, preferably the PK.
*
*
* PARAMETERS:
* comparison_name : Identifier for the comparison.
* schema_name : Name of the schema to compare.
* Must be same schema name on both databases.
* object_name : Name of the object to compare.
* remote_schema_name : Name of the schema to compare.
* (OPTIONAL)
* remote_object_name : Name of the object to compare.
* (OPTIONAL)
* dblink_name : Database link to the remote database.
* index_schema_name : Name of index schema.
* index_name : Name of index.
* comparison_mode : CMP_COMPARE_MODE_OBJECT. In future, there will be
more modes.
* column_list : '*' : include ALL columns in comparison (default)
* Other : Comma-separate list of columns to check.
* Must include the column that has been chosen
* as the index column for comparison.
*
* Column names can be quoted.
*
* scan_mode : CMP_SCAN_MODE_FULL, CMP_SCAN_MODE_RANDOM,
* CMP_SCAN_MODE_CYCLIC, CMP_SCAN_MODE_CUSTOM
* scan_percent : The percent of table to scan. Applicable when
* scan_mode IN (CMP_SCAN_MODE_RANDOM,
* CMP_SCAN_MODE_CYCLIC)
* null_value : The value to substitute null column values.
* (OPTIONAL)
* local_converge_tag : The local streams tag to set before performing
* any dmls to converge the data.
* (OPTIONAL)
* remote_converge_tag: The remote streams tag to set before performing
* any dmls to converge the data.
* (OPTIONAL)
* num_buckets : Suggested number of buckets to divide a scan into.
* (OPTIONAL)
* num_rows_in_bucket : Suggested number of rows in a bucket.
* (OPTIONAL)
*
*/
PROCEDURE create_comparison(
comparison_name VARCHAR2,
schema_name VARCHAR2,
object_name VARCHAR2,
dblink_name VARCHAR2,
index_schema_name VARCHAR2 DEFAULT NULL,
index_name VARCHAR2 DEFAULT NULL,
remote_schema_name VARCHAR2 DEFAULT NULL,
remote_object_name VARCHAR2 DEFAULT NULL,
comparison_mode VARCHAR2 DEFAULT CMP_COMPARE_MODE_OBJECT,
column_list VARCHAR2 DEFAULT '*',
scan_mode VARCHAR2 DEFAULT CMP_SCAN_MODE_FULL,
scan_percent NUMBER DEFAULT NULL,
null_value VARCHAR2 DEFAULT CMP_NULL_VALUE_DEF,
local_converge_tag RAW DEFAULT NULL,
remote_converge_tag RAW DEFAULT NULL,
max_num_buckets NUMBER DEFAULT CMP_MAX_NUM_BUCKETS,
min_rows_in_bucket NUMBER DEFAULT CMP_MIN_ROWS_IN_BUCKET
);
TYPE comparison_type IS RECORD (
scan_id NUMBER,
loc_rows_merged NUMBER, -- local rows upserted
rmt_rows_merged NUMBER, -- remote rows upserted
loc_rows_deleted NUMBER,
rmt_rows_deleted NUMBER
);
/*
* compare: Perform a comparison identified by comparison name.
*
* PARAMETERS:
* comparison_name : Identifier for the comparison.
* scan_info : Information returned about the scan.
* perform_row_dif : When TRUE, performs individual row level difs.
* When FALSE, will stop at the bucket level.
* min_value : When scan_mode for the comparison is CMP_SCAN_MODE_CUSTOM
* then a minimum index column value must be specified.
* max_value : Maximum index column value and similar to min_value.
*
* RETURN:
*
* TRUE : When no difs are found.
* FALSE : When difs are found.
*/
FUNCTION compare(
comparison_name IN VARCHAR2,
scan_info OUT comparison_type,
min_value IN VARCHAR2 DEFAULT NULL,
max_value IN VARCHAR2 DEFAULT NULL,
perform_row_dif IN BOOLEAN DEFAULT FALSE
) RETURN BOOLEAN;
/*
* recheck: Recheck a specified scan.
*
* PARAMETERS:
* comparison_name: Identifier for the comparison.
* scan_id : The scan id to be rechecked. It need not be a top-level
* scan.
* perform_row_dif: When TRUE, performs individual row level difs.
* When FALSE, will stop at the bucket level.
*
* RETURN:
*
* TRUE : When no difs are found.
* FALSE : When difs are found.
*
*/
FUNCTION recheck(
comparison_name IN VARCHAR2,
scan_id IN NUMBER,
perform_row_dif IN BOOLEAN DEFAULT FALSE
) RETURN BOOLEAN;
/*
* converge: Execute compensating dmls to get the two objects to converge.
*
* PARAMETERS:
* comparison_name : Identifier for the comparison.
* scan_id : The scan id for which dmls need to be executed.
* It need not be a top-level scan.
* converge_options: This decides whether the local object wins or the
* remote object wins.
* perform_commit : Whether to perform a Commit after executing the dmls.
* local_converge_tag : The local streams tag to set before performing
* any dmls to converge the data. This will override
* the local tag set through create_comparison() API.
* remote_converge_tag : The remote streams tag to set before performing
* any dmls to converge the data. This will override
* the remote tag set through create_comparison() API.
*
*/
PROCEDURE converge(
comparison_name IN VARCHAR2,
scan_id IN NUMBER,
scan_info OUT comparison_type,
converge_options IN VARCHAR2 DEFAULT CMP_CONVERGE_LOCAL_WINS,
perform_commit IN BOOLEAN DEFAULT TRUE,
local_converge_tag IN RAW DEFAULT NULL,
remote_converge_tag IN RAW DEFAULT NULL
);
/*
* purge_comparison: Purge a comparison's results or a subset of it.
*
* PARAMETERS:
* comparison_name : Identifier for the comparison.
* scan_id : The scan id whose results need to be purged.
* It has to be a top-level scan, else an error is raised.
* (Optional)
* purge_date : The date before which results can be purged.
* (Optional)
*
*/
PROCEDURE purge_comparison(
comparison_name IN VARCHAR2,
scan_id IN NUMBER DEFAULT NULL,
purge_time IN TIMESTAMP DEFAULT NULL
);
/*
* drop_comparison: Drop a comparison.
*
* PARAMETERS:
* comparison_name: Identifier for the comparison.
*
*/
PROCEDURE drop_comparison(
comparison_name IN VARCHAR2
);
end dbms_comparison;
/
show errors
GRANT EXECUTE ON dbms_comparison TO execute_catalog_role
/
CREATE OR REPLACE PUBLIC SYNONYM dbms_comparison FOR dbms_comparison
/
@?/rdbms/admin/sqlsessend.sql
OHA YOOOO