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• 前端之家
• Oracle
• oracle表空间中空表统计方法示例介绍

<div class="codebody" id="code70106">
DECLARE
v_table tabs.tablename%TYPE;
vsql VARCHAR2(888);
v_q NUMBER;
CURSOR c1 IS
SELECT table_name tn FROM tabs;
TYPE c IS REF CURSOR;
c2 c;
BEGIN
DBMS_OUTPUT.PUT_LINE('以下为空数据表的表名:');
FOR r1 IN c1 LOOP
vtable :=r1.tn;
vsql :='SELECT COUNT(*) q FROM '||vtable;
OPEN c2 FOR vsql;
LOOP
FETCH c2 INTO v_q;
EXIT WHEN c2%NOTFOUND;
IF v_q=0 THEN
DBMS_OUTPUT.PUT_LINE(v_table);
END IF;
END LOOP;
CLOSE c2;
END LOOP;
EXCEPTION
WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error occurred');
END;