Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

SQLÓï¾äÔÚJavaScriptÖеÄÓ¦ÓÃ

×î½üÒ»Ö±ÔÚÓÃjavascriptÔÚ×öÏîÄ¿
¿ÉÊÇ×ö×Å×ö×Å
¸Ð¾õºÜ¶à¹¦ÄÜ´úÂë¶¼ÊÇÖØ¸´µÄ¡£
±ÈÈç¶ÔjavascriptÊý×éµÄÅÅÐò
»¹ÓжÔÊý×éÊý¾ÝµÄɾѡÒÔ¼°·Ö×é
ËùÒÔ£¬ºóÀ´ÐËÖÂÒÔÉÏÀ´¡£
Ò»·¢²»¿ÉÊÕʰ¡£
дÁËÒ»¸öÄÜÔÚjavascriptÖÐÓ¦ÓÃµÄ SQL ¿â
ºóÀ´ÓÖÏ룬Ôõô²»ÄÜÓÃjavascriptÖ±½ÓÁ¬½ÓÊý¾Ý¿âÄØ£¿
ÓÖ×öÁËÒ»¸öjavascriptÖ±Á¬SqlÊý¾ÝµÄÀà¿â
ºóÀ´£¬ÓÖÏëµ½Æäʵ»¹¿ÉÒÔÓÃSQLÓï¾äÀ´²Ù×÷HTML DOMÄ£ÐÍ
ÔÙÔÙÔÙºóÀ´£¬ÓÖ¿´µ½ÁËHTML5ÖжÔweb DBµÄʵÏÖ
ËùÒÔ¶ÔwebDB£¬¾ÍÊÇchromeºÍsafariÖеÄsqliteµÄ·â×°
ÓÚÊǺõ¾ÍÓÐÁË£º
1.´Ó·þÎñÆ÷ÉÏ»ñÈ¡Êý¾Ý¡¢Ö´ÐÐSQL²Ù×÷£º
    _SQLPROXYURL_ = 'SQLProxy.php';
    _SQLSERVERHOST_ = 'localhost';
    _SQLUSERNAME_ = 'root';
    _SQLPASSWORD_ = '';
    _SQLDATABASE_ = 'HotelManageMent';
    var result = "select * from Room".OnServer().executeSQL();
    for(var i=0; i<result.length; i++) {
        //do something here.... using result[i];
    }
2.²Ù×÷Javascript Object Array ¡¢Ö´ÐÐSQL²Ù×÷£º
    var Room = [
            {
                ID: 'bot',
                name: 'test',
                sex: true
            }, {
                ID: 2,
                name: 'test8',
                sex: true
            }, {
                ID: 3,
                name: 'test5',
       


Ïà¹ØÎĵµ£º

ÇÉÓÃSQL PIVOTʵÏÖ»·¾³¼à²âÊý¾ÝµÄ¡°Êúºá¡±×ª»»


Ë®»·¾³¼à²âÊý¾Ý´æ´¢½á¹¹ÖÐÓÐÒ»ÖÖģʽ½Ð×ö"Êú±íģʽ"£¬¼´ÔÚ¼à²âÊý¾Ý±íÖУ¬Ä³¸öµãλÔÚij¸öʱ¼äµãÉϸ÷¼à²âÏîÄ¿µÄŨ¶È²â¶¨ÖµÔÚÎïÀí±íÖд洢ÔÚ¶àÌõ¼Ç¼ÖУ¬³ÊÊú×´·Ö²¼¡£¼à²âÊý¾Ý±íÖаüº¬²âµã´úÂë¡¢¼à²âʱ¼ä¡¢¼à²âÏîÄ¿´úÂ롢Ũ¶È²â¶¨ÖµµÈ£¬ËùÓмà²âÏîÄ¿µÄŨ¶È²â¶¨Öµ¶¼´æ´¢ÔÚͬһ¸ö×Ö¶ÎÖУ¬¼ÓÒÔ¼à²âÏîÄ¿´úÂë×÷ÎªÇø·Ö×ֶΡ£
"Êú ......

SQL ServerÖеÄÐÐÁе¹Öü¼ÇÉ

ÐÐÁе¹ÖÃÔÚsql serverÖÐÊÇÒ»Öֺܳ£¼ûµÄ¼¼ÇÉ£¬ÔÚ×öÓ¦ÓÃϵͳµÄʱºò£¬¾­³£ÐèÒª×öһЩͳ¼Æ¹¦ÄܱÜÃâ²»ÁËʹÓÃÐÐÁе¹ÖÃÕâ¸ö¼¼ÇÉ£¬ÎÒССµÄ×öÁËÒ»ÏÂ×ܽ᣺
µÚÒ»ÖÖ£ºsql server 2000ÖÐʹÓÃcase½øÐÐÐÐÁе¹ÖÃ
create table RowCellConvertTest
(
 grade varchar(50),
 sex varchar(50),
 studentCount int
)
......

½²½âMSSQLÊý¾Ý¿âÖÐSQLËø»úÖÆºÍÊÂÎñ¸ôÀë¼¶±ð

Ëø»úÖÆ
NOLOCKºÍREADPASTµÄÇø±ð¡£
1. ¿ªÆôÒ»¸öÊÂÎñÖ´ÐвåÈëÊý¾ÝµÄ²Ù×÷¡£
BEGIN TRAN t
INSERT INTO Customer
SELECT 'a','a'
2. Ö´ÐÐÒ»Ìõ²éѯÓï¾ä¡£
SELECT * from Customer WITH (NOLOCK)
½á¹ûÖÐÏÔʾ"a"ºÍ"a"¡£µ±1ÖÐÊÂÎñ»Ø¹öºó£¬ÄÇôa½«³ÉΪÔàÊý¾Ý¡£(×¢:1ÖеÄÊÂÎñδÌá½») ¡£NOLOCK±íÃ÷ûÓжÔÊý¾Ý±íÌí¼Ó¹²Ï ......

SQL¿çÓû§È¡½øÐÐÊý¾Ý¿â²Ù×÷£¨ÕâÀïÓõ½ÁËleft join£©

select ks.login_name,ks.exam_name,ks.start_time,ks.end_time,cj.score
from (
     select u.user_id,u.login_name,e.* from  cphrms.EXAM_USER eu, cphrms.users u, cphrms.exam_info e
     where eu.user_id = u.user_id and eu.exam_id = e.exam_id
) ks
left ......

SQL¸ß¼¶Ó¦Óà Garin Zhang

×·¼Ó£ºrow_number, rank, dese_rank, ntile
1. row_number: Ϊ²éѯ³öÀ´µÄÿһÐмǼÉú³ÉÒ»¸öÐòºÅ¡£
SELECT row_number() OVER(ORDER BY field) AS row_n
from tablename;
·ÖÒ³²éѯ£º
with t_towtable
as (select row_number over(order by field1) as row_number from tb)
select * from t_rowtable where row_numbe ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ