What does the "@" symbol do in SQL? - Stack Overflow
The @CustID means it's a parameter that you will supply a value for later in your code. This is the best way of protecting against SQL injection. Create your query using parameters, rather than …
Should I use != or <> for not equal in T-SQL? - Stack Overflow
Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e.g. in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL Server", they say "As …
sql - NULL values inside NOT IN clause - Stack Overflow
SQL NOT IN constraint and NULL values From the text of the question it appears that the problem was occurring in a SQL DML SELECT query, rather than a SQL DDL CONSTRAINT. …
SQL Server® 2016, 2017, 2019 and 2022 Express full download
Jan 25, 2017 · All previous version of SQL Server Express were available in both web and full downloads. But I cannot find full download of SQL Server® 2016 Express. Does it exist? …
sql - Use one CTE many times - Stack Overflow
A CTE is, per definition, only valid for one statement. You can create an inline table-valued function and then use this as often as you like. The inline function does what the name …
SQL: IF clause within WHERE clause - Stack Overflow
Sep 18, 2008 · Is it possible to use an IF clause within a WHERE clause in MS SQL? Example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE …
sql - How to find out what is locking my tables? - Stack Overflow
I have a SQL table that all of a sudden cannot return data unless I include with (nolock) on the end, which indicates some kind of lock left on my table. I've experimented a bit with …
sql - Exclude a column using SELECT * [except columnA] FROM …
FROM TableA This very powerful SQL syntax avoids a long list of columns that must be constantly updated due to table column name changes. This functionality is missing in the …
sql - Update a table with data from another table - Stack Overflow
Muhd 25.8k 22 66 79 2 possible duplicate of sql update query with data from another table – p.campbell Aug 11, 2011 at 18:07 2
Qué hago si no encuentro el Sql Server Configuration Manager en …
Nov 25, 2016 · El SQL Server configuration manager, generalmente es accesible como complemento de la consola de administración (microsoft management console: mmc.exe). …