大约有 6,000 项符合查询结果（耗时：0.0202秒） [XML]
Original purpose of ? [closed]
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For example
<?php
if(isset($_POST['delete_action'])) {
mysqli_query($connection, "DELETE FROM table_name
WHERE record_id = ".$_POST['row_to_be_deleted']);
//Here is where hidden field value is used
}
wh...
How to find out line-endings in a text file?
...gs in a file printed rather than interpreted. The file is a dump from SSIS/SQL Server being read in by a Linux machine for processing.
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Distinct not working with LINQ to Objects
...t with implementing methods, and if using EF will delegate the work to the sql server.
– Zapnologica
Aug 31 '15 at 11:25
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Looping through a hash, or using an array in PowerShell
I'm using this (simplified) chunk of code to extract a set of tables from SQL Server with BCP .
7 Answers
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What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
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DECIMAL is the MySQL data-type for exact arithmetic. Unlike FLOAT its precision is fixed for any size of number, so by using it instead of FLOAT you might avoid precision errors when doing some calculations. If you were just storing and retri...
Download file of any type in Asp.Net MVC using FileResult?
... public ActionResult Download(int fileID)
{
Data.LinqToSql.File file = _fileService.GetByID(fileID);
return new DownloadResult { VirtualPath = GetVirtualPath(file.Path),
FileDownloadName = file.Name };
}
In my example...
Spring Boot - Cannot determine embedded database driver class for database type NONE
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spring.datasource.url = jdbc:mysql://localhost/abc #spring.datasource.driverClassName = com.mysql.jdbc.Driver spring.datasource.name=olabsenglishdb spring.datasource.username=xxxx spring.datasource.password=xxxx spring.datasource.driver-class-name= com.mys...
How to get enum value by string or int
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From SQL database get enum like:
SqlDataReader dr = selectCmd.ExecuteReader();
while (dr.Read()) {
EnumType et = (EnumType)Enum.Parse(typeof(EnumType), dr.GetString(0));
....
}
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What are the uses for Cross Join?
...o use a cross join to create a crosstab report. I found it in Joe Celko's SQL For Smarties, and have used it several times. It does take a little setup, but has been worth the time invested.
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How to get the sizes of the tables of a MySQL database?
I can run this query to get the sizes of all tables in a MySQL database:
16 Answers
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