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ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
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The Problem is with FOREIGN KEY Constraint. By Default (SET FOREIGN_KEY_CHECKS = 1). FOREIGN_KEY_CHECKS option specifies whether or not to check foreign key constraints for InnoDB tables. MySQL - SET FOREIGN_KEY_CHECKS
We can set foreign key check as disable before running Query....
How to make a JSONP request from Javascript without JQuery?
...doable with JSONP. It's a hack from the pre-CORS days. What do you need to set headers for? The server specifically needs to accept JSONP requests so it should be set up to serve in a sane manner.
– Matt Ball
Aug 14 '16 at 21:54
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How to store a git config as part of the repository?
...ike a configure script or similar that users must run, you could have that set the include (or prompt the user to).
– Hasturkun
Aug 20 '13 at 10:01
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Is it possible to set async:false to $.getJSON call
Is it possible to set async: false when calling $.getJSON() so that the call blocks rather than being asynchronous?
7 A...
How can javascript upload a blob?
...ta) {
console.log(data);
});
You need to use the FormData API and set the jQuery.ajax's processData and contentType to false.
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How do I set the figure title and axes labels font size in Matplotlib?
...)
plt.ylabel('ylabel', fontsize=16)
fig.savefig('test.jpg')
For globally setting title and label sizes, mpl.rcParams contains axes.titlesize and axes.labelsize. (From the page):
axes.titlesize : large # fontsize of the axes title
axes.labelsize : medium # fontsize of the x any y labe...
Oracle: how to UPSERT (update or insert into a table?)
... ('X', 123);
exception
when dup_val_on_index then
update t
set mystuff = 123
where mykey = 'X';
end;
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What is the best way to prevent session hijacking?
...To do that, first make sure your login page is HTTPS. When a user logs in, set a secure cookie (meaning the browser will only transmit it over an SSL link) in addition to the regular session cookie. Then, when a user visits one of your "sensitive" areas, redirect them to HTTPS, and check for the pre...
ASP.NET “special” tags
...s" or "ASP.NET inline expressions". Visual Studio 2008 syntax highlighting settings dialog calls these "HTML Server-Side Script". Microsoft guys call them "code nuggets" in their blogs.
<%@ %> is a Directive for ASP.NET Web Pages. Used for pages and controls to configure page/control compile...
Populating Spring @Value during Unit Test
... your test without spring, then you have full control over its fields.
To set the @value field you can use Springs ReflectionTestUtils - it has a method setField to set private fields.
@see JavaDoc: ReflectionTestUtils.setField(java.lang.Object, java.lang.String, java.lang.Object)
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