sql³£ÓÃÓï¾ä
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
Ïà¹ØÎĵµ£º
ϵͳ»·¾³£ºWindows 7
Èí¼þ»·¾³£ºVisual C++ 2008 SP1 +SQL Server 2005
±¾´ÎÄ¿µÄ£º±àдһ¸öº½¿Õ¹ÜÀíϵͳ
ÕâÊÇÊý¾Ý¿â¿Î³ÌÉè¼ÆµÄ³É¹û£¬ËäÈ»³É¼¨²»¼Ñ£¬µ«ÊÇ×÷ΪÎÒÓÃVC++ ÒÔÀ´±àдµÄ×î´ó³ÌÐò»¹ÊÇ´«µ½ÍøÉÏ£¬ÒÔ¹©²Î¿¼¡£ÓÃVC++ ×öÊý¾Ý¿âÉè¼Æ²¢²»ÈÝÒ×£¬µ«Ò²²»ÊDz»¿ÉÄÜ¡£ÒÔÏÂÊÇÎҵijÌÐò½çÃæ£¬ºóÃæ ......
×î½üÕýÔÚѧϰÓÃSQL×öһЩ¶«Î÷£¬ÔÚÒ»¸öÌû×ÓÉÏÃæ¿´µ½ÕâÆª¶ÔºÜÓаïÖú£¬¾Í×ªÔØµ½ÁË×Ô¼ºµÄBlogÀϣÍû¶Ô´ó¼ÒÒ²ÓаïÖú¡£
SQL²Ù×÷È«¼¯
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
DML—Êý¾Ý²Ù× ......
ͨ¹ýSqlÓï¾ä»ñµÃ ÁеÄÀàÐͺÍ˵Ã÷:
µÃµ½µÄ±íÍ·£º±íÃû|ÁÐÃû|ÀàÐÍ|˵Ã÷
1£ºÕë¶Ôsql server 2000£¬ÔÚsql2000ÖУ¬Ê¹Óãºsysobjects,syscolumnsºÍsysproperties±í
SELECT o.name as table_name,c.name AS col_name,type_name(c.xtype) AS type_name,isnull(p.value,'') AS col_Pro ......
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
1¡¢ËµÃ÷£º´´½¨Êý¾Ý¿â
CREATE DATABASE data ......
´æ´¢¹ý³Ì¸ú¶¯Ì¬sqlÏà±ÈÓÐÈçÏÂÓŵ㣺
1¡¢ ´æ´¢¹ý³ÌÔÊÐí±ê×¼×é¼þʽ±à³Ì
´æ´¢¹ý³ÌÔÚ±»´´½¨ÒÔºó¿ÉÒÔÔÚ³ÌÐòÖб»¶à´Îµ÷Óöø²»±ØÖØÐ±àд¸Ã´æ´¢¹ý³ÌµÄSQL
Óï¾ä¶øÇÒÊý¾Ý¿âרҵÈËÔ±¿ÉËæÊ±¶Ô´æ´¢¹ý³Ì½øÐÐÐ޸ĵ«¶ÔÓ¦ÓóÌÐòÔ´´úÂëºÁÎÞÓ°ÏìÒò
ΪӦÓóÌÐòÔ´´úÂëÖ»°üº¬´æ´¢¹ý³ÌµÄµ÷ÓÃÓï¾ä´Ó¶ø¼«´óµØÌá¸ßÁ˳ÌÐòµÄ¿ÉÒÆÖ²ÐÔ
2 ¡¢´æ´¢¹ý³Ì ......