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use myoa
select * from
delete from department where departmentid=1
insert Department(DepartmentId,DepartmentName) values(1,'¼¼Êõ²¿')
update Department set departmentname='ÐÅÏ¢¼¼Êõ²¿' where departmentid=1
--ɾ³ý±í
drop table department
--ɾ³ýÊý¾Ý¿â
drop database bai
--ͳ¼ÆÊý¾Ý¿â±íÖмǼ
select count(*) as Êý¾Ý¿â¼Ç¼ from Department
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using (con)
{
con.Open();
String sqltext = "select * from emp where empno=@empno";
......
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/// <summary>
/// µÃµ½ËùÓб¾µØÍøÂçÖпÉʹÓõÄSQL·þÎñÆ÷Áбí
/// </summary>
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1. /*+ALL_ROWS*/
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SELECT /*+ALL+_ROWS*/ EMP_NO,EMP_NAM,DAT_IN from BSEMPMS WHERE EMP_NO='SCOTT';
2. /*+FIRST_ROW ......
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DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
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