DM儲存過程示例子-表的行數對比

阿新 • • 發佈：2020-11-03

1.DM儲存過程示例子，表的行數對比

  1 --1. ================全量
  2 --select * from DM_VERI where c2 != c3;
  3 --drop table DM_VERI;
  4 --create table DM_VERI(c1 varchar(100) PRIMARY KEY, c2 int, c3 int);
  5 --truncate table DM_VERI;
  6 
  7 --1.1 
  8 CREATE OR REPLACE PROCEDURE proc_veri(v_user IN VARCHAR2) 
  9 
 AS
 10     v_table varchar(40);
 11     v_count number;
 12     v_count2 number;
 13     v_sql VARCHAR(1024);
 14     v_sql2 VARCHAR(1024);
 15     c1 CURSOR;
 16 BEGIN    
 17   OPEN c1 FOR SELECT TABLE_NAME  FROM dba_tables t where t.OWNER=v_user;
 18   LOOP  
 19     FETCH c1  INTO v_table;
 20     
 21 
     --1.dm
 22     v_sql:='select COUNT(*) from' || v_table;
 23     execute immediate v_sql into v_count;
 24     
 25     --2.ora
 26     --v_sql2:='select COUNT(*) from' || v_table||'@link01';
 27     v_sql2:='select COUNT(*) from' || v_table;
 28     execute immediate v_sql2 into v_count2;
 29     
 30 
     
 31     insert into DM_VERI values (v_table, v_count, v_count2);
 32     
 33     PRINT v_table || v_count||v_count2;
 34     --PRINT v_count;
 35       
 36     EXIT WHEN c1%NOTFOUND;  
 37     
 38   END LOOP;    
 39   CLOSE c1;
 40 END; 
 41 
 42 --1.2
 43 --call proc_veri('SYSDBA');
 44 
 45 
 46 --======================================================================
 47 --2. 分佈sql
 48 --2.1 ora
 49 --select * from TEST_V_ORA where c2 != c3;
 50 --drop table TEST_V_ORA;
 51 --create table TEST_V_ORA(c1 varchar(100), c2 int);
 52 --truncate table TEST_V_ORA;
 53 CREATE OR REPLACE PROCEDURE proc_v_ora(v_user IN VARCHAR)
 54 AS
 55     v_table varchar(40);
 56     v_count2 number;
 57     v_sql2 VARCHAR(1024);
 58     c1 CURSOR;
 59 BEGIN    
 60   OPEN c1 FOR SELECT TABLE_NAME  FROM dba_tables t where t.OWNER=v_user;
 61   LOOP  
 62     FETCH c1  INTO v_table;
 63     
 64     --2.ora
 65     --v_sql2:='select COUNT(*) from' || v_table||'@link01';
 66     v_sql2:='select COUNT(*) from' || v_table;
 67     execute immediate v_sql2 into v_count2;
 68     
 69     
 70     insert into TEST_V_ORA(c1,c3) values (v_table, v_count2);
 71     
 72     PRINT v_table || v_count2;
 73       
 74     EXIT WHEN c1%NOTFOUND;  
 75     
 76   END LOOP;   
 77   CLOSE c1;
 78   commit;
 79 END;
 80 
 81 truncate table DM_VERI;
 82 
 83 call proc_veri_ora('SYSDBA');
 84 
 85 select * from DM_VERI;
 86 
 87 
 88 --2.2 dm
 89 --select * from TEST_V_DM where c2 != c3;
 90 --drop table TEST_V_DM;
 91 --create table TEST_V_DM(c1 varchar(100), c2 int);
 92 --truncate table TEST_V_DM;
 93 CREATE OR REPLACE PROCEDURE proc_v_dm(v_user IN VARCHAR) 
 94 AS
 95     v_table varchar(40);
 96     v_count number;  
 97     v_sql VARCHAR(1024);
 98     c1 CURSOR;
 99 BEGIN    
100   OPEN c1 FOR SELECT TABLE_NAME  FROM dba_tables t where t.OWNER=v_user;
101   LOOP  
102     FETCH c1  INTO v_table;
103     
104     --1.dm
105     v_sql:='select COUNT(*) from' || v_table;
106     execute immediate v_sql into v_count;
107     
108     
109     update TEST_V_DM set c2=v_count where c1=v_table;
110     
111     PRINT v_table || v_count;
112       
113     EXIT WHEN c1%NOTFOUND;  
114     
115   END LOOP;  
116   CLOSE c1;
117   commit;
118 END;
119 
120 
121 call proc_v_dm('SYSDBA');
122 
123 select * from TEST_V_DM;
124 
125 
126 ------==========================ORA 資料對比==============================
127 
128 select 'select count(*) cnt,'''||TABLE_NAME||'''from ' || TABLE_NAME||' union all '  from (
129  select TABLE_NAME from DBA_TABLES
130        where OWNER like 'SYSDBA' AND TABLE_NAME NOT LIKE '##%' order by TABLE_NAME);