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 ×îÐÂÎÄÕ : sql

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ÿ1000Ìõ¼Ç¼ÅúÁ¿É¾³ý


SQL code:

ÔÚ´¥·¢Æ ......

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a        b        c        d        e                          f        g
100000.00 20000.00 80000.00 5 2009-11-18 00:00:00.000 160 ......

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±íAÖÐ×Ö¶Îa Êý¾ÝÀàÐÍdatetime  Àý 2009-1-15
aÖµ¿ÉÒÔÊÇÖØ¸´

ÒªÇóͳ¼Æ³ö2009 ÿһ¸öÔ·ݵIJ»Öظ´µÄaÖµÓжàÉÙ¸ö

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SQL code:

select a, ¼Ç¼Êý=count(distinct(a)) from A
where year(a)='2009'
group by datepart(mm,a)

SQ ......

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ExecuteNonQuery()

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string sql="¶ÁÈ¡txtµÃµ½µÄ×Ö·û´®"


ExecuteNonQuery()

pr.StartInfo.Arguments = "-U sa -P sa -d master -s 127.0.0.1 -i Sql.sql";

Õâ¸ö¿ÉÒÔÓÃwindow ......

Õâ¸öSQLÓï¾äÔõôд£¿

one±í
id  name
1    ÒÆ¶¯
2    µçÐÅ
3    ÁªÍ¨

two±í
oneid  price
1      4000.00
3      200.00
3      5000.00

½á¹û
±àºÅ  Ãû³Æ  ¼Û¸ñ
1      ÒÆ¶¯ ......

ĪÃûÆæÃîµÄsqlÒì³£

C# code:
private void Bind()
{
con = db.CreateConnection("Simple_bbs");
con.Open();
commandText = "select title_name,u_photo,r_body,r_master,r_createtime from user_information,user_reply,user_title where (r_master=u_name and (user_reply.title_id=user ......
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