包的定義: create or replace package myTest is type out_cur is ref cursor; procedure writeCount(codeid in nvarchar2); procedure testSandyInSert(codeid in nvarchar2,counts out number); end myTest; 預存程序的定義: create or replace package body myTest is
create user cmsuser identified by "cmsuser"; SQL> create user uumcuser identified by "password";User created.SQL> grant connect,dba to uumcuser;Grant succeeded.SQL> grant exp_full_database,imp_full_database,resource,create any sequence to
Oracle查表結構、屬主、所有表等語句 select * from dba_tables 查系統中所有表select * from all_tab_columns where table_name = 'TableName' and Owner = 'OwnerName' 查系統中某個具體表結構select * from tab where tabtype = 'TABLE' 查目前使用者下的所有表,tabtype可變select * from user_tables;
如何在Oracle中複製表結構和表資料1. 複製表結構及其資料:create table table_name_new as select * from table_name_old 2. 只複製表結構:create table table_name_new as select * from table_name_old where 1=2;或者:create table table_name_new like table_name_old 3. 只複製表資料:如果兩個表結構一樣:insert
1. 內串連很簡單select A.*, B.* from A,B where A.id = B.idselect A.*, B.* from A inner join B on A.id = B.id以上兩句是完全等價的2. 左外串連select * from emp a left join dept d on a.deptno=d.deptnoselect * from emp a,dept d where a.deptno=d.deptno(+)以上兩句是完全等價的3.
對於 process、connection、 session之間的關係process:分為 user process、server process 、 background process。其中,user process 在client 用戶端的一個進程, server process 是指專門用來處理和 user process 建立建立的進程 。對於background process,是用來串連SGA和Database之間進程。connection:一個用來串連 server