命令文本中的日期条件 [英] Date Condition in command text
问题描述
我的日期格式是yyyy-mm-dd
mycommandtext是''select * from myTable where issate> =''" &
Me.txtStartDate.text& "''和issated< =''" &安培; Me.txtEndDate.text& "''"
它返回零记录，是命令文本是否有错误？
非常感谢
两件事。首先将日期括在＃和第二个我相信
日期必须是mm / dd / yyyy格式。
Dim strDate As String = Me。 txtStartDate.text
Dim dt As Date = Date.ParseExact（strDate，" yyyy-mm-dd"，New
Globalization.CultureInfo（" en-US））
从myTable中选择*，其中authorate> =＃" &
dt.toshortdatestring& ＃和issate< =＃" &安培; dt.toshortdatestring&安培; "＃"
Ken
---------------------
Agnes < AG *** @ dynamictech.com.hk>写在消息
新闻：u7 ************** @ TK2MSFTNGP12.phx.gbl ...
我的日期格式是yyyy-mm-dd
mycommandtext是''select * from myTable where issuedate> =''" &
Me.txtStartDate.text& "''和issated< =''" &安培; Me.txtEndDate.text& "''"
它返回零记录，是命令文件有错误吗？
非常感谢
两件事。首先将日期括在＃和第二个我相信
日期必须是mm / dd / yyyy格式。
Dim strDate As String = Me。 txtStartDate.text
Dim dt As Date = Date.ParseExact（strDate，" yyyy-mm-dd"，New
Globalization.CultureInfo（" en-US））
从myTable中选择*，其中authorate> =＃" &
dt.toshortdatestring& ＃和issate< =＃" &安培; dt.toshortdatestring&安培; "＃"
Ken
---------------------
Agnes < AG *** @ dynamictech.com.hk>写在消息
新闻：u7 ************** @ TK2MSFTNGP12.phx.gbl ...
我的日期格式是yyyy-mm-dd
mycommandtext是''select * from myTable where issuedate> =''" &
Me.txtStartDate.text& "''和issated< =''" &安培; Me.txtEndDate.text& "''"
它返回零记录，是命令文件有错误吗？
非常感谢
"艾格尼丝" < AG *** @ dynamictech.com.hk> schrieb：我的日期格式是yyyy-mm-dd
mycommandtext是''select * from myTable where issuedate> =''" &
Me.txtStartDate.text& "''和issated< =''" &安培; Me.txtEndDate.text& "''"
使用参数而不是手动汇总SQL命令字符串
防止SQL注入：
< URL：http：//groups.google.de/groups？selm = eb11vcS0DHA.2604％40TK2MSFTNGP09.phx.gb l>
-
MS Herfried K. Wagner
MVP< URL：http：//dotnet.mvps.org/>
VB< ;网址：http：//dotnet.mvps.org/dotnet/faqs/>
my date format is in yyyy-mm-dd
mycommandtext is ''select * from myTable where issuedate >=''" &
Me.txtStartDate.text & "'' and issuedate <= ''" & Me.txtEndDate.text & "'' "
It return zero records, Is that the commandtext got errors ??
Thanks a lot
Hi,
Two things. First enclose the date in # and second i believe the
date has to be in mm/dd/yyyy format.
Dim strDate As String = Me.txtStartDate.text
Dim dt As Date = Date.ParseExact(strDate, "yyyy-mm-dd", New
Globalization.CultureInfo("en-US"))
select * from myTable where issuedate >= #" &
dt.toshortdatestring & "# and issuedate <= #" & dt.toshortdatestring& "# "
Ken
---------------------
"Agnes" <ag***@dynamictech.com.hk> wrote in message
news:u7**************@TK2MSFTNGP12.phx.gbl...
my date format is in yyyy-mm-dd
mycommandtext is ''select * from myTable where issuedate >=''" &
Me.txtStartDate.text & "'' and issuedate <= ''" & Me.txtEndDate.text & "'' "
It return zero records, Is that the commandtext got errors ??
Thanks a lot
Hi,
Two things. First enclose the date in # and second i believe the
date has to be in mm/dd/yyyy format.
Dim strDate As String = Me.txtStartDate.text
Dim dt As Date = Date.ParseExact(strDate, "yyyy-mm-dd", New
Globalization.CultureInfo("en-US"))
select * from myTable where issuedate >= #" &
dt.toshortdatestring & "# and issuedate <= #" & dt.toshortdatestring& "# "
Ken
---------------------
"Agnes" <ag***@dynamictech.com.hk> wrote in message
news:u7**************@TK2MSFTNGP12.phx.gbl...
my date format is in yyyy-mm-dd
mycommandtext is ''select * from myTable where issuedate >=''" &
Me.txtStartDate.text & "'' and issuedate <= ''" & Me.txtEndDate.text & "'' "
It return zero records, Is that the commandtext got errors ??
Thanks a lot
"Agnes" <ag***@dynamictech.com.hk> schrieb:my date format is in yyyy-mm-dd
mycommandtext is ''select * from myTable where issuedate >=''" &
Me.txtStartDate.text & "'' and issuedate <= ''" & Me.txtEndDate.text & "'' "
Use parameters instead of putting together the SQL command string by hand to
prevent SQL injection:
<URL:http://groups.google.de/groups?selm=eb11vcS0DHA.2604%40TK2MSFTNGP09.phx.gb l>
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
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