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for ACCESS :
update a, b set a.name=b.name1 where a.id=b.id
for SQL Server:
"update a set a.name=b.name1 from a,b where a.id=b.id"
update   a   set   a.status=b.status  
  from   table1   a,table2   b  
  where   a.id1=b.id1  
update a inner join b on a.a1=b.b1 set a.a2=b.b2Ìõ¼þ
update   table1   set   a.status   =   b.status  
  from   table1   a   inner   join   table2   b    
  on   a.idl   =   b.idl
http://topic.csdn.net/t/20041013/14/3451961.html
http://www.cnblogs.com/hanguoji/archive/2007/02/01/636723.aspx


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O:select abs(-1) value from dual
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O:select ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
S:select floor(-1.001) value
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S:select cast(-1.002 as int) v ......

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SQL×Ö·û´®´¦Àíº¯Êý´óÈ«

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select ×Ö¶Î1 from ±í1 where ×Ö¶Î1.IndexOf("ÔÆ")=1;
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left£¨£©ÊÇsqlº¯Êý¡£
select ×Ö¶Î1 from ±í1 where charindex£¨'ÔÆ',×Ö¶Î1£©=1;
×Ö·û´®º¯Êý¶Ô¶þ½øÖÆÊý¾Ý¡¢×Ö·û´®º ......

SQL ´óÈ« ÐÄÓêÖ®¼Ò

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Select * from TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as
2.Êý¾Ý¿â¼ÓÃÜ:
select encrypt('ԭʼÃÜÂë')
select pwdencrypt('ԭʼÃÜÂë')
select pwdcompare('ԭʼÃÜÂë','¼ÓÃܺóÃÜÂë') = 1--Ïàͬ£»·ñÔò²»Ïàͬ encrypt('ԭʼÃÜÂë')
select pwdencrypt('ԭʼÃÜÂë')
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SQL SERVER 2000/2005 ÁÐתÐÐ ÐÐתÁÐ


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ÕÅÈý 74 83 93
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create table tb(Ð ......
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