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SQL JOIN and different types of JOINs
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An illustration from W3schools:
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What is the difference between Views and Materialized Views in Oracle?
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Materialized views are disk based and are updated periodically based upon the query definition.
Views are virtual only and run the query definition each time they are accessed.
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How to 'insert if not exists' in MySQL?
...2007/10/18/mysql-insert-if-not-exists-syntax.html
there's also INSERT … ON DUPLICATE KEY UPDATE syntax, you can find explanations on dev.mysql.com
Post from bogdan.org.ua according to Google's webcache:
18th October 2007
To start: as of the latest MySQL, syntax presented in the title ...
How to get box-shadow on left & right sides only
Any way to get box-shadow on left & right (horizontal?) sides only with no hacks or images. I am using:
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SQL join: selecting the last records in a one-to-many relationship
...ose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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Is SQL syntax case sensitive?
...ver in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column names are the default on Linux MySQL and case-insensitive used to be the default on Windows, but now the installer asked about this during setu...
What is the dependency inversion principle and why is it important?
What is the dependency inversion principle and why is it important?
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Sharing link on WhatsApp from mobile website (not application) for Android
I have developed a website which is mainly used in mobile phones.
I want to allow users to share information directly from the web page into WhatsApp.
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Git hook to send email notification on repo changes
How do I configure the appropriate Git hook to send a summary email whenever a set of changes is pushed to the upstream repository?
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How does origin/HEAD get set?
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Note first that your question shows a bit of misunderstanding. origin/HEAD represents the default branch on the remote, i.e. the HEAD that's in that remote repository you're calling origin. When you switch branches in your repo, you're not affecting th...