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What are the most common SQL anti-patterns? [closed]
... us who work with relational databases have learned (or are learning) that SQL is different. Eliciting the desired results, and doing so efficiently, involves a tedious process partly characterized by learning unfamiliar paradigms, and finding out that some of our most familiar programming pattern...
Import .bak file to a database in SQL server
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On SQL Server Management Studio
Right click Databases on left pane (Object Explorer)
Click Restore Database...
Choose Device, click ..., and add your .bak file
Click OK, then OK again
Done.
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When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...n someone tell me when and where I need to use begin and end blocks in SQL Server?
Also, what exactly does the Go keyword do?
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Sql Server string to date conversion
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SQL Server (2005, 2000, 7.0) does not have any flexible, or even non-flexible, way of taking an arbitrarily structured datetime in string format and converting it to the datetime data type.
By "arbitrarily", I mean "a form t...
How can I set a custom date time format in Oracle SQL Developer?
By default, Oracle SQL developer displays date values as 15-NOV-11 . I would like to see the time part (hour/minute/second) by default.
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How to get a float result by dividing two integer values using T-SQL?
Using T-SQL and Microsoft SQL Server I would like to specify the number of decimal digits when I do a division between 2 integer numbers like:
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Referring to a Column Alias in a WHERE Clause
...fter the WHERE clause.)
But, as mentioned in other answers, you can force SQL to treat SELECT to be handled before the WHERE clause. This is usually done with parenthesis to force logical order of operation or with a Common Table Expression (CTE):
Parenthesis/Subselect:
SELECT
*
FROM
(
SELE...
Export and Import all MySQL databases at one time
I want to keep a backup of all my MySQL databases. I have more than 100 MySQL databases. I want to export all of them at the same time and again import all of them into my MySQL server at one time. How can I do that?
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Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr
When I create a table in SQL Server and save it, if I try to edit the table design, like change a column type from int to real, I get this error:
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致PHP路上的“年轻人” - 杂谈 - 清泛网 - 专注C/C++及内核技术
...处于某一块，那么大流量项目可以让你清晰上下游关系、性能瓶颈问题分析、关注细节实现。通过大流量项目，会让你从之前草草实现功能，逐步精细化的设计完成项目，会让你考虑的更多，实现的更细心，发现问题更敏锐。适...