问题列表 - 第4922页

disconnect会使1个活动语句句柄无效(在断开连接之前,destroy语句处理或调用它们)

从MySQL获取数据的以下代码成功执行,但会导致Apache在其错误日志中生成以上消息:

my $driver   = "mysql";
my $server   = "localhost:3306";
my $database = "test";
my $url      = "DBI:$driver:$database:$server";
my $user     = "apache";
my $password = "";

#Connect to database
my $db_handle = DBI->connect( $url, $user, $password ) 
    or die $DBI::errstr;

#SQL query to execute
my $sql = "SELECT * FROM tests WHERE id=?";

#Prepare SQL query
my $statement = $db_handle->prepare($sql)
        or die "Couldn't prepare query '$sql': $DBI::errstr\n";

#Execute SQL Query
$statement->execute($idFromSomewhere)
    or die "Couldn't execute query '$sql': $DBI::errstr\n";

#Get query …

当您有一个包含Geometry类型字段(或Geography)的表时,可以调用该Reduce()函数以使形状的顶点数量减少.工作得非常好.然而,当多边形的多个相邻(它们共享其边界的一部分)时,缩小的多边形不一定这样做.

例

SQL批处理:

CREATE TABLE #Shapes (
shape geometry,
naam varchar(50)
 )

-- exact:
insert into #Shapes (naam, shape) VALUES ('Area A',Geometry::STGeomFromText('POLYGON ((52.084744368912652 5.1304192959796637, 52.085234231548384 5.1304194002877921, 52.085474282948049 5.1304486630822, 52.0857341082301 5.1304792705923319, 52.086134375073016 5.1306082883384079, 52.086594087770209 5.13079824927263, 52.087194303050637 5.1311187236569822, 52.089074697112665 5.1323992793913931, 52.089834430487826 5.1333390253130347, 52.090353938518092 5.1341692635323852, 52.090254480473 5.1342997345712416, 52.090824429301414 5.13520842681262, 52.09141399711384 5.1360295349486274, 52.091884278226644 5.1365492835175246, 52.092085719574243 5.1367767199408263, 52.092194211203605 5.1368992186617106, 52.092494247804545 5.1372492032188495, 52.092884057915427 5.13754907634854, 52.093083867570385 5.137679290259257, 52.093254011290028 5.1378082139755827, 52.093554640188813 5.1380093733314425, 52.094204571098089 5.1384683684445918, 52.094214495038614 5.1384888619650155, 52.093702809136488 5.1390791568504124, 52.0939114689827 5.1395669728517532, 52.0938675517682 5.1396009074524045, 52.093849835848111 5.1396084928439114, 52.093797143315896 5.1396473892964423, …

我在Visual Studio 2008中使用调用msbuild的预构建任务:

C:\WINDOWS\Microsoft.NET\Framework\v3.5\MSBuild.exe $(MSBuildProjectDirectory)\version.targets /p:Configuration=$(ConfigurationName)

在version.targets中,我正在更新AssemblyInfo.cs文件以替换版本信息:

   <FileUpdate
        Encoding="ASCII"
        Files="$(MSBuildProjectDirectory)\Properties\AssemblyInfo.cs"
        Regex="AssemblyInformationalVersion\(&quot;.*&quot;\)\]" 
        ReplacementText="AssemblyInformationalVersion(&quot;Product $(ConfigurationString) ($(buildDate))&quot;)]"
    />

当我通过Visual Studio 2008构建项目时,它构建没有任何问题.

但是当我查看生成的exe的版本信息时,它包含上一个时间戳,即使AssemblyInfo.cs已经使用"正确"更改了.

似乎主编译任务没有看到预编译的变化,它总是落后.

我做错了什么想法？

我的visual studio xml编辑器不见了.因此,当我打开例如web.config文件时,它显示为纯文本文件.如果我右键单击 - >打开方式:XML编辑器选项它不再存在.有没有人遇到过这个问题？我已经尝试修复安装和卸载/安装,但它没有修复它.谢谢您的帮助.

您好我一直在尝试使用boost库tokenizer类来使用tokenizer.我在boost文档中找到了这个教程:

http://www.boost.org/doc/libs/1 _36 _0/libs/tokenizer/escaped _list _separator.htm

问题是我不能让参数逃脱_list _separator("","","");

但如果我修改boost/tokenizer.hpp文件就可以了.但那并不是理想的解决方案,想知道是否有任何我想要的东西,以便在转义的_list _separator中获得不同的参数.

我想把它拆分为空格,用"和"表示转义,并且在引用的字符串中没有转义字符.

这用于在游戏控制台系统中进行参数解析系统.

include <iostream>
include <boost/tokenizer.hpp>
include <string>


int main()
{
    using namespace std;
    using namespace boost;
    string s = "exec script1 \"script argument number one\"";
    string separator1("");//dont let quoted arguments escape themselves
    string separator2(" ");//split on spaces
    string separator3("\"\'");//let it have quoted arguments
    tokenizer<escaped_list_separator<char>(separator1,separator2,separator3)> tok(s);
    for(tokenizer<escaped_list_separator<char>(separator1,separator2,separator3)>::iterator beg=tok.begin(); beg!=tok.end();++beg)
    {
    cout << *beg << "\n";
    }
}