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MySQL Error 1215: Cannot add foreign key constraint
...
I'm guessing that Clients.Case_Number and/or Staff.Emp_ID are not exactly the same data type as Clients_has_Staff.Clients_Case_Number and Clients_has_Staff.Staff_Emp_ID.
Perhaps the columns in the parent tables are INT UNSIGNED?
They need to be exactly ...
How do I create a foreign key in SQL Server?
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create table question_bank
(
question_id uniqueidentifier primary key,
question_exam_id uniqueidentifier not null,
question_text varchar(1024) not null,
question_point_value decimal,
constraint fk_questionbank_exams foreign ke...
Best way to create an empty object in JSON with PHP?
...ll end up with a {} in your encoded data you could use a hack such as:
json_encode (json_decode ("{}"));
Even though it's tedious and ugly I do assume/hope that json_encode/json_decode is compatible with one and other and always will evalute the following to true:
$a = <something>;
$a === js...
Best Practice for Exception Handling in a Windows Forms Application?
I'm currently in the process of writing my first Windows Forms application. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translat...
How to remove a directory from git repository?
...e directory and recommit it to the .git repo?
– alpha_989
Jan 21 '18 at 18:15
1
Great! Working!
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How to write lists inside a markdown table?
... edited Apr 3 '15 at 8:29
marc_s
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answered Nov 14 '13 at 11:52
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How do you set, clear, and toggle a single bit?
... << x); will not put the value of bit x into bit unless bit has type _Bool (<stdbool.h>). Otherwise, bit = !!(number & (1 << x)); will..
– Chris Young
Nov 16 '08 at 7:49
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How do I find a default constraint using INFORMATION_SCHEMA?
...I don't want to use the sysobjects table, but the more standard INFORMATION_SCHEMA.
14 Answers
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What is an MvcHtmlString and when should I use it?
...d my own extension method to make a <link> tag:
<Extension()> _
Public Function CssBlock(ByVal html As HtmlHelper, ByVal src As String, ByVal Optional ByVal htmlAttributes As Object = Nothing) As MvcHtmlString
Dim tag = New TagBuilder("link")
tag.MergeAttribute("type", "text/css...
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of
...ained the proxy settings (settings.xml can exist in two places one in MAVEN_HOME. The other in %userprofile%.m2\ with the later having higher precedence):
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>opti...