LINQ to SQL ѧϰreference
http://weblogs.asp.net/scottgu/archive/2007/09/07/linq-to-sql-part-9-using-a-custom-linq-expression-with-the-lt-asp-linqdatasource-gt-control.aspx
1-9 parts are the most useful knowledge for you so far.
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select
emp_no,emp_name,dept,isnull(convert(char(10),birthday,120),'ÈÕÆÚ²»Ïê') birthday
from employee
order by dept
¡¡¡¡
2¡¢²éÕÒÓëÓ÷×ÔÇ¿ÔÚͬһ¸öµ¥Î»µÄÔ±¹¤ÐÕÃû¡¢ÐÔ±ð¡ ......
if object_id('[tb]') is not null
drop table [tb]
go
create table [tb]([id] int,[col1] varchar(8),[col2] int)
insert [tb]
select 1,'ºÓ±±Ê¡',0 union all
select 2,'ÐĮ̈ÊÐ',1 union all
select 3,'ʯ¼ÒׯÊÐ',1 union all
select 4,'ÕżҿÚÊÐ',1 union all
&n ......
1.oracle
sql = "SELECT column_name, data_type, data_length, nullable";
sql += " from user_tab_columns ";
sql += " where table_name='";
sql += $tableName;
sql += "'";
select * from user_tab_comments & ......