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

BEGIN
DBMS_SCHEDULER.CREATE_JOB(job_name => ' delete_goods_job ' ,
job_type => ' STORED_PROCEDURE ' ,
job_action => ' delete_goods ' ,
repeat_interval => ' FREQ=SECONDLY;INTERVAL=6 ' ,
enabled => true,
comments => ' deletegoodsdata '
);
END ;
/

drop job

BEGIN
DBMS_SCHEDULER.DROP_JOB(job_name => ' delete_goods_job ' );
END ;
/

disable job

BEGIN
DBMS_SCHEDULER.DISABLE(name => ' delete_goods_job ' );
END ;
/

enable job

BEGIN
DBMS_SCHEDULER.ENABLE(name => ' delete_goods_job ' );
END ;
/

select jobs

select * from USER_SCHEDULER_JOBS;

query logs(感謝itpub的teddyboy)

select * from ALL_SCHEDULER_JOB_RUN_DETAILS
where owner = ' SCOTT '
order by log_date desc

delete logs

delete from ALL_SCHEDULER_JOB_RUN_DETAILS
where owner = ' SCOTT '

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'

ORACLE技術(shù)小整理