Plsql常用語法總結

1、增加表字段:alter table collect_image_url add id number(19) not null

2、刪除表字段：alter table collect_image_url drop column sd

3、插入資料：insert into flfg(bh,mc,lj,fl) values(14,'sdj,'/mit-web/jccjbk/dgmbacz.html','gzczgf')；

4、通過dblink取別的表中的資料更新：update center t set t.code = (select j.code from border@center_db_link j where j.name = t.dw and rownum = 1)

5、建立dblink：create public database link db_link

connect to db1 identified by db1

using '(description=(address_list=(address=(protocol=tcp)(host=192.168.56.36)(port=1521)))(connect_data=(service_name=dsdb)))';

6、通過dblink建立檢視:create or replace view v_db as select * from db1.jsk@db1;

7、建立表:create table disposeresult（id number(16),sjdbh1 varchar2(50),cjdbh2 varchar2(50),zldbh3 varchar2(50),czfs4 varchar2(50)，

xccztype5 varchar2(50),nbyj6 varchar2(50),qtcontent7 varchar2(2048),tjcontent8 varchar2(2048),tjresult9 varchar2(50));

8、更新資料update border t set t.type = '2' where t.name = 'skjsa'

9、帶有條件的插入資料：update border t set t.type = '2' where t.name = '的啥叫'

10、建立sequence

create sequence seq_sjdsjjj

start with 1//id以多少開始

maxvalue 999999999999999999999999999//最大值

minvalue 1//最小值

increment by 1//增量

cache 20//快取記憶體

11、刪除某個表：delete from 表名稱

12、帶有條件的插入資料：insert into center (id) (select y.type from border y where y.name ='測試')

13、根據編號查詢此編號數量的個數

select t.bh,count(*) from t_zdxx t group by t.bh

14、 update t_zd t set t.ssdw=(select j.dm from t_bd_dw j where j.qc like '%'|| t.ssdw) where t.ssdwbm is null

16、匯出資料庫：exp biaoming/[email protected]:1521/mydb file=d:/biaoming.dmp

17、匯入資料庫：imp biaoming/[email protected]:1521/mydb file=d:\example.dmp full=y

18、檢視 grant create view to 建檢視的表名

grant select any table to 建檢視的表名

grant select any dictionary to 建檢視的表名