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Unioning two tables with different number of columns
I have two tables (Table A and Table B).
5 Answers
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Alter Table Add Column Syntax
I'm trying to programmatically add an identity column to a table Employees. Not sure what I'm doing wrong with my syntax.
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“Prevent saving changes that require the table to be re-created” negative effects
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The table is only dropped and re-created in cases where that's the only way SQL Server's Management Studio has been programmed to know how to do it.
There are certainly cases where it will do that when it doesn't need to, but th...
Multi-statement Table Valued Function vs Inline Table Valued Function
...He is correct, there will be a difference in performance between an inline table valued function (ITVF) and a multi-statement table valued function (MSTVF) even if they both simply execute a SELECT statement. SQL Server will treat an ITVF somewhat like a VIEW in that it will calculate an execution p...
How to alter a column and change the default value?
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ALTER TABLE foobar_data MODIFY COLUMN col VARCHAR(255) NOT NULL DEFAULT '{}';
A second possibility which does the same (thanks to juergen_d):
ALTER TABLE foobar_data CHANGE COLUMN col col VARCHAR(255) NOT NULL DEFAULT '{}';
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How do you determine what SQL Tables have an identity column programmatically
...umns in SQL Server 2005 that have identity columns and their corresponding table in T-SQL.
13 Answers
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Tooltips for cells in HTML table (no Javascript)
Is it possible to have tooltips for table cells with no JavaScript. Can't use it.
6 Answers
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Relational table naming convention [closed]
I'm starting a new project and would like to get my table- and column names right from the start. For example I've always used plural in table names but recently learned singular is correct.
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How to set initial value and auto increment in MySQL?
How do I set the initial value for an "id" column in a MySQL table that start from 1001?
10 Answers
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Get size of all tables in database
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SELECT
t.NAME AS TableName,
s.Name AS SchemaName,
p.rows,
SUM(a.total_pages) * 8 AS TotalSpaceKB,
CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB,
SUM(a.used_pages) * 8 AS UsedSpaceK...