1.查詢并殺死鎖
select t2.username,t2.sid,t2.serial#,t2.logon_time,t3.sql_text
from v$locked_object t1,v$session t2,v$sqltext t3
where t1.session_id=t2.sid
and t2.sql_address=t3.address
order by t2.logon_time;
alter system kill session 'sid,serial#';(sid,serial#為查詢字段值);
2.分頁
select * from (select rownum r,* from yourtable where rownum < N) a where a.r betweenN1 and N2;
3.用其他表的數(shù)據(jù)更新
UPDATE (
SELECT T1.BALANCE, T2.MONTH_CUMULATE, T2.QUARTER_CUMULATE, T2.YEAR_CUMULATE
FROM PLSQL_MX_BBHQ_PROCESSED T1, PLSQL_MX_BBHQ_CUMULATE T2
WHERE T1.ACNO = T2.ACNO)
SET
MONTH_CUMULATE = MONTH_CUMULATE + BALANCE ,
QUARTER_CUMULATE = QUARTER_CUMULATE + BALANCE ,
YEAR_CUMULATE = YEAR_CUMULATE + BALANCE ;
UPDATE PLSQL_MX_JJ_CUMULATE T2
SET t2.MONTH_CUMULATE = t2.MONTH_CUMULATE + ( SELECT BALANCE FROM PLSQL_MX_JJ_SUM t1 WHERE t1.acno = t2.acno ),
t2.quarter_cumulate = t2.quarter_cumulate + ( SELECT BALANCE FROM PLSQL_MX_JJ_SUM t1 WHERE t1.acno = t2.acno ),
t2.year_cumulate = t2.year_cumulate + ( SELECT BALANCE FROM PLSQL_MX_JJ_SUM t1 WHERE t1.acno = t2.acno )
WHERE EXISTS ( SELECT BALANCE FROM PLSQL_MX_JJ_SUM t1 WHERE t1.acno = t2.acno);
4.全半角轉(zhuǎn)換
FUNCTION FUNC_FULLTOHALF(INSTR VARCHAR2) RETURN VARCHAR2
IS
V_I INTEGER;
OUTSTR varchar2(20);
BEGIN
V_I := 1;
OUTSTR := '';
WHILE V_I <= LENGTH(INSTR) LOOP
IF ASCII(SUBSTR(INSTR, V_I, 1)) > 41856 AND
ASCII(SUBSTR(INSTR, V_I, 1)) < 41856 + 128 THEN
OUTSTR := OUTSTR || CHR(ASCII(SUBSTR(INSTR, V_I, 1)) - 41856);
ELSE
OUTSTR := OUTSTR || SUBSTR(INSTR, V_I, 1);
END IF;
V_I := V_I + 1;
END LOOP;
RETURN OUTSTR;
EXCEPTION
WHEN OTHERS THEN RETURN OUTSTR;
END FUNC_FULLTOHALF;
5.關(guān)于計(jì)劃dbms_scheduler
a.create job
BEGIN










drop job




disable job




enable job




select jobs

query logs(感謝itpub的teddyboy)



delete logs


6.查詢約束
select a.constraint_name , --約束名稱
a.CONSTRAINT_TYPE ,--約束類型
a.TABLE_NAME ,--表名
b.COLUMN_NAME ,--列名
a.SEARCH_CONDITION --約束內(nèi)容
from USER_CONSTRAINTS a,USER_CONS_COLUMNS b
where a.CONSTRAINT_NAME=b.CONSTRAINT_NAME
AND a.constraint_name = '要查詢約束名稱'
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