Oracle自动分析索引，表

--分析表

REATE OR REPLACE PROCEDURE analyze_tables IS

--rec integer;
v_date1 number(10);
v_date2 number(10);
V_SQL varchar2(512);
v_msg varchar2(512);

BEGIN
FOR rec IN (SELECT table_name FROM user_tables)
LOOP
v_date1 := dbms_utility.get_time;
V_SQL := 'ANALYZE TABLE ' || rec.table_name || ' COMPUTE STATISTICS';
BEGIN
EXECUTE IMMEDIATE V_SQL;
v_msg := V_SQL || ' OK!';
EXCEPTION
WHEN OTHERS THEN
v_msg := V_SQL || ' Error!';
END;
v_date2 := dbms_utility.get_time;
v_msg := v_msg || ' 分析花费时间:' || to_char((v_date2 - v_date1) / 100);
DBMS_OUTPUT.put_line(v_msg);
END LOOP;

END;

----分析索引

CREATE OR REPLACE PROCEDURE analyze_indexs IS


v_date1 number(10);
v_date2 number(10);
V_SQL varchar2(512);
v_msg varchar2(512);

BEGIN

FOR rec IN (SELECT index_name FROM user_indexes)
LOOP
v_date1 := dbms_utility.get_time;
V_SQL := 'ANALYZE INDEX ' || rec.index_name ||
' COMPUTE STATISTICS';
BEGIN
EXECUTE IMMEDIATE V_SQL;
v_msg := V_SQL || ' OK!';

EXCEPTION
WHEN OTHERS THEN
v_msg := V_SQL || ' Error!';

END;
v_date2 := dbms_utility.get_time;
v_msg := v_msg || ' 分析花费时间:' || to_char((v_date2 - v_date1) / 100);
DBMS_OUTPUT.put_line(v_msg);
END LOOP;

END;