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SQL code:
ÔÚ´¥·¢Æ ......
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¸´
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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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Ö´ÐÐËü°¡
ÔõôִÐУ¿´úÂ룿
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 ......
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¶¯ ......
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 ......