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DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
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CREATE DATABASE database-name
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drop database dbname
3¡¢ËµÃ÷£º±¸·Ýsql server
--- ´´½¨ ±¸·ÝÊý¾ÝµÄ device
USE master
EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
--- ¿ªÊ¼ ±¸·Ý
BACKUP DATABASE pubs TO testBack
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create table tabname(col1 type1 [not null] [primary key],col2 type2 [not null],..)
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A£ºcreate table tab_new like tab_old (ʹÓÃ¾É±í´´½¨Ð±í)
B£ºcreate table tab_new as select col1,col2… from tab_old definition only
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ɾ³ýÐÂ±í£ºdrop table tabname
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Ôö¼ÓÒ»¸öÁУºAlter table tabname add column col type
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ɾ³ýÖ÷¼ü£ºAlter table tabname drop primary key(col)
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´´½¨Ë÷Òý£ºcreate [unique] index idxname on tabname(col….)
ɾ³ýË÷Òý£ºdrop index idxname
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´´½¨ÊÓͼ£ºcreate view viewname as select statement
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Ñ¡Ôñ£ºselect * from table1 where ·¶Î§
²åÈ룺insert into table1(field1,field2) values(value1,value2)
ɾ³ý£ºdelete from table1 where ·¶Î§
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ÅÅÐò£ºselect * from table1 order by field1,field2 [desc]
×ÜÊý£ºselect count * as totalcount from table1
ÇóºÍ£ºselect sum(field1) as sumvalue from table1
ƽ¾ù£ºselect avg(field1) as avgvalue from table1
×î´ó£ºselect max(field1) as maxvalue from table1
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sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

vba ½«excel²åÈësqlÊý¾Ý¿â

Private Sub insert1_click()
Dim iCount As Integer
Dim cn
Set cn = CreateObject("ADODB.Connection")
cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Password=8233;Initial Catalog=hskmis;Data Source=127.0.0.1"
cn.Open
cn.Execute ("delete temp9")
'¼ÆËã¸Ã±íÓжàÉÙÐ ......

Sql Server »ñÈ¡¡¢Ôö¼Ó¡¢Ð޸ġ¢É¾³ý ×Ö¶ÎÃèÊö

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Select o.name AS tableName, c.name AS columnName, p.[value] AS Description  
from sysproperties p INNER JOIN  
      sysobjects o ON o.id = p.id INNER JOIN  
      syscolumn ......

ORACLE ³£ÓõÄSQLÓï·¨ºÍÊý¾Ý¶ÔÏó

 Ò».Êý¾Ý¿ØÖÆÓï¾ä (DML) ²¿·Ö
            1.Insert (ÍùÊý¾Ý±íÀï²åÈë¼Ç¼µÄÓï¾ä)
            Insert INTO ±íÃû(×Ö¶ÎÃû1, ×Ö¶ÎÃû2, ……) VALUES ( Öµ1, Öµ2, ……);
&nb ......
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