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How to 'insert if not exists' in MySQL?
... one row, one column table present by default in all Oracle databases (see https://en.wikipedia.org/wiki/DUAL_table). On a MySQL-Server version 5.7.26 I got a valid query when omitting FROM DUAL, but older versions (like 5.5.60) seem to require the FROM information. By using WHERE NOT EXISTS the int...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
... }
}
Rebuild and test
Build a simple html page
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="../<path_to_jquery>/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
var uri = '/a...
how can I Update top 100 records in sql server
...een deprecated at least since SQL 2005, but as of SQL 2017 it still works.
https://docs.microsoft.com/en-us/sql/t-sql/statements/set-rowcount-transact-sql?view=sql-server-2017
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Version of SQLite used in Android?
...ite version only works on emulators and on devices with sqlite3 available: https://stackoverflow.com/a/3645800/444761
For other devices, see Juri's answer.
I have added an Issue #58909 to the Android Issue Tracker. Please star this if you would like to support it.
Note: if you want your app to use t...
How to check for a valid Base64 encoded string
...lic static bool IsBase64(this string base64String) {
// Credit: oybek https://stackoverflow.com/users/794764/oybek
if (string.IsNullOrEmpty(base64String) || base64String.Length % 4 != 0
|| base64String.Contains(" ") || base64String.Contains("\t") || base64String.Contains("\r") || b...
How do you add an action to a button programmatically in xcode
...ide)
func click(sender: UIButton) {
print("click")
}
Documentation: https://developer.apple.com/documentation/uikit/uicontrol/1618259-addtarget
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Best way to implement Enums with Core Data
...
If you're using mogenerator, have a look at this: https://github.com/rentzsch/mogenerator/wiki/Using-enums-as-types. You can have an Integer 16 attribute called itemType, with a attributeValueScalarType value of Item in the user info. Then, in the user info for your entity, ...
JavaScript - Get minutes between two dates
...tc.
http://momentjs.com/docs/
The CDN for moment.js is available here:
https://cdnjs
Google Maps Android API v2 Authorization failure
...
to install Google Play Service rev. more than 2
to create project at https://code.google.com/apis/console/
to enable "Google Maps Android API v2"
to register of SHA1 in project (NOW, YOU NEED WRITE SHA1;your.app.package.name) at APIs console and get API KEY
to copy directory ANDROID_SDK_DIR/e...
Can you test google analytics on a localhost address?
...imply setting the domain to none.
ga('create', 'UA-XXXX-Y', 'none');
See: https://developers.google.com/analytics/devguides/collection/analyticsjs/domains#localhost
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