对比Oracle和YashanDB对象不一致的方法
前言
通过YMP迁移Oracle到YashanDB对象后，YMP已经提供了校验功能，推荐使用YMP的校验功能。如果需要更复杂的对比方法，可采用本文中的对比思路和方法。
思路
保存Oracle的DBA_*数据字典视图到某用户的表，然后通过YMP传到YashanDB，最后使用YashanDB的DBeaver图形界面通过SQL来查询不一致。
方法
1、在Oracle执行，保存Oracle的DBA_*数据字典视图到Oracle用户的表
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create user oracle identified by welcome1; grant dba, resource, connect to oracle;
create table oracle.dba_objects as select * from sys.dba_objects; create table oracle.dba_tables as select * from sys.dba_tables; create table oracle.dba_indexes as select * from sys.dba_indexes; create table oracle.dba_ind_columns as SELECT INDEX_OWNER, INDEX_NAME, TABLE_OWNER, TABLE_NAME, COLUMN_NAME, COLUMN_POSITION, COLUMN_LENGTH, DESCEND FROM SYS.DBA_IND_COLUMNS; create table oracle.dba_constraints as SELECT OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME, INDEX_NAME, INDEX_OWNER, R_OWNER, R_CONSTRAINT_NAME, DELETE_RULE, STATUS, DEFERRABLE, DEFERRED, VALIDATED, GENERATED FROM SYS.DBA_CONSTRAINTS; create table oracle.dba_cons_columns as SELECT OWNER, CONSTRAINT_NAME, TABLE_NAME, COLUMN_NAME, POSITION FROM SYS.DBA_CONS_COLUMNS;
create table oracle.dba_types as select * from sys.dba_types; create table oracle.dba_views as SELECT OWNER, VIEW_NAME, TEXT_LENGTH, TEXT_VC FROM SYS.DBA_VIEWS; create table oracle.dba_sequences as select * from sys.dba_sequences; create table oracle.dba_source as select * from sys.dba_source; create table oracle.dba_triggers as SELECT OWNER, TRIGGER_NAME, TRIGGER_TYPE, TRIGGERING_EVENT, TABLE_OWNER, BASE_OBJECT_TYPE, TABLE_NAME, COLUMN_NAME, REFERENCING_NAMES, WHEN_CLAUSE, STATUS, DESCRIPTION, ACTION_TYPE FROM SYS.DBA_TRIGGERS; |
2、通过YMP将Oracle用户下的第一步保存的数据字典信息表同步到YashanDB数据库的Oracle用户
3、在YashanDB执行，保存SYS的DBA_*数据字典视图到Yashan用户的表
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create user yashan identified by welcome1; grant dba to yashan;
create table yashan.dba_objects as select * from sys.dba_objects; create table yashan.dba_tables as select * from sys.dba_tables; create table yashan.dba_indexes as select * from sys.dba_indexes; create table yashan.dba_ind_columns as SELECT INDEX_OWNER, INDEX_NAME, TABLE_OWNER, TABLE_NAME, COLUMN_NAME, COLUMN_POSITION, COLUMN_LENGTH, DESCEND FROM SYS.DBA_IND_COLUMNS; create table yashan.dba_constraints as SELECT OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME, INDEX_NAME, INDEX_OWNER, R_OWNER, R_CONSTRAINT_NAME, DELETE_RULE, STATUS, DEFERRABLE, DEFERRED, VALIDATED, GENERATED FROM SYS.DBA_CONSTRAINTS; create table yashan.dba_cons_columns as SELECT OWNER, CONSTRAINT_NAME, TABLE_NAME, COLUMN_NAME, POSITION FROM SYS.DBA_CONS_COLUMNS;
create table yashan.dba_types as select * from sys.dba_types; create table yashan.dba_views as SELECT OWNER, VIEW_NAME, TEXT_LENGTH, TEXT FROM SYS.DBA_VIEWS; create table yashan.dba_sequences as select * from sys.dba_sequences; create table yashan.dba_source as select * from sys.dba_source; create table yashan.dba_triggers as SELECT OWNER, TRIGGER_NAME, TRIGGER_TYPE, TRIGGERING_EVENT, TABLE_OWNER, BASE_OBJECT_TYPE, TABLE_NAME, COLUMN_NAME, REFERENCING_NAMES, WHEN_CLAUSE, STATUS, DESCRIPTION, ACTION_TYPE FROM SYS.DBA_TRIGGERS; |
4、利用数据库能力，直接对比Oracle用户和YashanDB用户的差异。以下只是参考SQL，请根据需要更改以下SQL：
1）查询视图差异
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SELECT object_type, owner, object_name, o_status, y_status FROM ( SELECT nvl(o.object_type, y.object_type) object_type, nvl(o.owner, y.owner) owner, nvl(o.object_name, y.object_name) object_name, o.status o_status, y.status y_status FROM ( SELECT object_type, owner, object_name, status FROM oracle.DBA_OBJECTS WHERE OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND OBJECT_TYPE = 'VIEW') o FULL OUTER JOIN ( SELECT object_type, owner, object_name, status FROM yashan.DBA_OBJECTS WHERE OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND OBJECT_TYPE = 'VIEW') y ON o.object_type = y.object_type AND o.owner = y.owner AND o.object_name = y.object_name ORDER BY o.object_type, o.owner, o.object_name ) WHERE nvl(o_status, 'NOT_EXISTS_IN_ORACLE') != nvl(y_status, 'NOT_EXISTS_IN_YASHAN') ; |
2）查询PROCEDURE差异
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SELECT object_type, owner, object_name, o_status, y_status FROM ( SELECT nvl(o.object_type, y.object_type) object_type, nvl(o.owner, y.owner) owner, nvl(o.object_name, y.object_name) object_name, o.status o_status, y.status y_status FROM ( SELECT object_type, owner, object_name, status FROM oracle.DBA_OBJECTS WHERE OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND OBJECT_TYPE = 'PROCEDURE') o FULL OUTER JOIN ( SELECT object_type, owner, object_name, status FROM yashan.DBA_OBJECTS WHERE OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND OBJECT_TYPE = 'PROCUDURE') y ON o.object_type = y.object_type AND o.owner = y.owner AND o.object_name = y.object_name ORDER BY o.object_type, o.owner, o.object_name ) WHERE nvl(o_status, 'NOT_EXISTS_IN_ORACLE') != nvl(y_status, 'NOT_EXISTS_IN_YASHAN') ; |
3）查询INDEX差异
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SELECT TABLE_OWNER, TABLE_NAME, o_index_colum_list, y_index_colum_list FROM ( SELECT nvl(o.TABLE_OWNER, y.TABLE_OWNER) TABLE_OWNER, nvl(o.TABLE_NAME, y.TABLE_NAME) TABLE_NAME, o.index_colum_list o_index_colum_list, y.index_colum_list y_index_colum_list FROM ( SELECT TABLE_OWNER, TABLE_NAME, LISTAGG(COLUMN_NAME, ',') WITHIN GROUP( ORDER BY COLUMN_POSITION) index_colum_list FROM oracle.DBA_IND_COLUMNS WHERE TABLE_OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') GROUP BY TABLE_OWNER, TABLE_NAME) o FULL OUTER JOIN ( SELECT TABLE_OWNER, TABLE_NAME, LISTAGG(COLUMN_NAME, ',') WITHIN GROUP( ORDER BY COLUMN_POSITION) index_colum_list FROM yashan.DBA_IND_COLUMNS WHERE TABLE_OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') GROUP BY TABLE_OWNER, TABLE_NAME) y ON o.TABLE_OWNER = y.TABLE_OWNER AND o.TABLE_NAME = y.TABLE_NAME ORDER BY 1, 2 ) WHERE nvl(o_index_colum_list, 'NOT_EXISTS_IN_ORACLE') != nvl(y_index_colum_list, 'NOT_EXISTS_IN_YASHAN') ; |
4）查询约束差异
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SELECT OWENR, TABLE_NAME, CONSTRAINT_TYPE, o_cons_column_list, y_cons_column_list FROM ( SELECT NVL(o.OWNER, y.OWNER) OWENR, NVL(o.TABLE_NAME, y.TABLE_NAME) TABLE_NAME, NVL(o.CONSTRAINT_TYPE, y.CONSTRAINT_TYPE) CONSTRAINT_TYPE, o_cons_column_list, y_cons_column_list FROM ( SELECT dc.OWNER, dc.TABLE_NAME, dc.CONSTRAINT_TYPE, dc.CONSTRAINT_NAME, listagg(dcc.COLUMN_NAME, ',') WITHIN GROUP( ORDER BY dcc.POSITION) o_cons_column_list FROM ORACLE.DBA_CONSTRAINTS dc, oracle.DBA_CONS_COLUMNS dcc WHERE dc.OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND dc.OWNER = dcc.OWNER AND dc.TABLE_NAME = dcc.TABLE_NAME AND dc.CONSTRAINT_NAME = dcc.CONSTRAINT_NAME GROUP BY dc.OWNER, dc.TABLE_NAME, dc.CONSTRAINT_TYPE, dc.CONSTRAINT_NAME) o FULL OUTER JOIN ( SELECT dc.OWNER, dc.TABLE_NAME, dc.CONSTRAINT_TYPE, dc.CONSTRAINT_NAME, listagg(dcc.COLUMN_NAME, ',') WITHIN GROUP( ORDER BY dcc.POSITION) y_cons_column_list FROM ORACLE.DBA_CONSTRAINTS dc, oracle.DBA_CONS_COLUMNS dcc WHERE dc.OWNER IN ('HR', 'OE', 'SH', 'BI', 'PM', 'IX') AND dc.OWNER = dcc.OWNER AND dc.TABLE_NAME = dcc.TABLE_NAME AND dc.CONSTRAINT_NAME = dcc.CONSTRAINT_NAME GROUP BY dc.OWNER, dc.TABLE_NAME, dc.CONSTRAINT_TYPE, dc.CONSTRAINT_NAME) y ON o.OWNER = y.OWNER AND o.TABLE_NAME = y.TABLE_NAME AND o.CONSTRAINT_TYPE = y.CONSTRAINT_TYPE AND o.o_cons_column_list = y.y_cons_column_list ) WHERE nvl(o_cons_column_list, 'NOT_EXISTS_IN_ORACLE') != nvl(y_cons_column_list, 'NOT_EXISTS_IN_YASHAN') ; |
