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求条查询语句,该怎么处理

热度:18   发布时间:2016-04-24 05:05:55.0
求条查询语句
select table_name from user_tab_cols where column_name='test';
这样查出某用户所有tabel里有test列的tabel!
但我很多个tabel里都有test这个列,我要查出所有tabel里test列的某一条数据,和在那一个tabel,具体怎么写。。。???

------解决方案--------------------
SQL code
declare sqlText varchar2(100);countNum number;type tableNameType is table of varchar2(100) index by binary_integer;tableName tableNameType;begin select distinct table_name bulk collect into tableName from user_tab_cols where column_name='USA';dbms_output.put_line(tableName.count());for v_index in 1..tableName.count() loopsqlText:= 'select count(*) from ' ||tableName(v_index)|| ' where usa=to_char(2)';execute immediate sqlText into countNum  ;if(countNum>0) thendbms_output.put_line(tableName(v_index));end if ;end loop;end;
------解决方案--------------------
-- Created on 2012/2/15 by ADMINISTRATOR 
Declare
colnm Constant Varchar2(10) := 'VEHICLE_ID'; --你要找的字段名
colv Varchar2(20) := '82'; --你要找的值
isExists Integer;
Begin
For r_up In (Select table_name From user_tab_cols Where column_name = colnm) Loop
Execute Immediate 'select case when exists (select ' || colnm || ' from ' ||
r_up.table_name ||
') then 1 else 0 end isExists from dual'
Into isExists;
If isExists = 1 Then
--输出所有符合条件的表
dbms_output.put_line(r_up.table_name);
End If;
End Loop;
End;
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