Requirements: For example, scott test oracle user library Zhang emp table below, ename column of the emp table data in a line 'CLARK'. Red marker part.
SQL> select * from scott.emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ---------- ---------- --------- ---------- --------- ---------- ---------- ---------- 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 19-APR-87 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 23-MAY-87 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 10
But you forgot the 'CLARK' in which the character Zhang table, and how to find out?
Here is the code plsql
set serveroutput on declare v_sql varchar2(2000); v_count number; begin for cur in(select t.owner, t.table_name, t.column_name from dba_tab_columns t where t.owner = 'SCOTT') loop begin v_sql := 'select count(1) from ' || cur.owner || '.' || cur.table_name || ' where ' || cur.column_name || ' like ''%CLARK%'''; execute immediate v_sql into v_count; if(v_count >= 1) then dbms_output.put_line(cur.owner || ':' || cur.table_name || ':' || cur.column_name); end if; exception when others then null; end; end loop; end; /
Description:
# If you are not sure which user table, put where t.owner = 'SCOTT' remove full library search, but inefficient to
# execute the code above in plsqldeveloper command window in
results is found in scott user CLARK emp table under the column ename
