共8 条记录, 每页显示 10 条, 页签: [1]

标题：下面这段代码可以向后台数据库写入数据吗？

1楼

lpxjw_zyl 发表于：2010/3/17 9:31:00

for i as Double = 10000001 to 1000099

Dim cmd As New SQLCommand
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"
cmd.C
cmd.ExecuteNonQuery()
next

2楼

lpxjw_zyl 发表于：2010/3/17 9:37:00

我试上述代码不报错，可是不增加数据，请帮忙解决。

3楼

lpxjw_zyl 发表于：2010/3/17 9:39:00

for i as Double = 10000001 to 1000099

Dim cmd As New SQLCommand
cmd.C
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"

cmd.ExecuteNonQuery()
next

代码是这个代码，请问错在哪儿

4楼

lpxjw_zyl 发表于：2010/3/17 9:40:00

for i as Double = 10000001 to 1000099

Dim cmd As New SQLCommand
cmd.C
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"

cmd.ExecuteNonQuery()
next

5楼

lpxjw_zyl 发表于：2010/3/17 9:40:00

for i as Double = 10000001 to 1000099

Dim cmd As New SQLCommand
cmd.C
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"

cmd.ExecuteNonQuery()
next

6楼

lxl 发表于：2010/3/17 9:46:00

以下是引用lpxjw_zyl在2010-3-17 9:31:00的发言：

for i as Double = 10000001 to 1000099

Dim cmd As New SQLCommand
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"
cmd.C
cmd.ExecuteNonQuery()
next

_Identify列如果不是自动增量列的话可以。

代码还能修改一下：
Dim cmd As New SQLCommand
cmd.C
for i as Double = 10000001 to 1000099
cmd.CommandText = "Insert Into Xssj (_Identify,编号,产品) Values('" & i & "'100,'PD01')"
cmd.ExecuteNonQuery()
next
这边能避免在循环中申明变量

7楼

lxl 发表于：2010/3/17 9:58:00

    Dim cmd As New SQLCommand
    cmd. Connectionname = "aaa"
    cmd.CommandText   = "set IDENTITY_INSERT Xssj ON "
    cmd.CommandText &= "Declare @i int "
    cmd.CommandText &= "set @i = 10000001 "
    cmd.CommandText &= "while @i < 10000100 "
    cmd.CommandText &= "begin "
    cmd.CommandText &= "Insert Into Xssj (_Identify,编号,产品) Values(@i,100,'PD01') "
    cmd.CommandText &= "set @i = @i + 1 "
    cmd.CommandText &= "end "
    cmd.CommandText &= "set IDENTITY_INSERT Xssj OFF "
    cmd.ExecuteNonQuery()

只向数据库提交一次请求，而原来的代码要提交100次请求。
_Identify是自增列也能正常插入

8楼

lpxjw_zyl 发表于：2010/3/17 10:10:00

for i as Double = 1000001 To 1000009
    Dim cmd As New SQLCommand
    cmd.C
    cmd.CommandText = "Insert Into Xssj (_Identify,编号,校名) Values('" & i & "',100,'重庆市梁平县')"
    cmd.ExecuteNonQuery()
    output.show(i)
next

共8 条记录, 每页显示 10 条, 页签: [1]