Oracle索引創建及使用

1.創建一個複合索引：

CREATE INDEX IDX_AIRM_ZY_MAC ON AIRM_ZY_MASTER_ADUIT_CREDIT(CREDIT_NO,TOTALBONUSAMT,CREDIT_RESULT,QUOTA,CREDIT_TIMESTAMP);

2.查詢數據庫,驗證索引是否生效：

EXPLAIN PLAN for
	SELECT CREDIT_NO,TOTALBONUSAMT,CREDIT_RESULT,QUOTA,CREDIT_TIMESTAMP from AIRM_ZY_MASTER_ADUIT_CREDIT WHERE CREDIT_NO=11;
SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);