Apr 14, 2011 · 11 In SQL, anything you evaluate / compute with NULL results into UNKNOWN This is why SELECT * FROM MyTable WHERE MyColumn != NULL or SELECT * FROM …

Nov 8, 2013 · What does <> (angle brackets) mean in MS-SQL Server? Asked 11 years, 8 months ago Modified 3 years, 10 months ago Viewed 80k times

Apr 6, 2009 · Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e.g. in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL …

Jun 28, 2019 · The other answers are correct if you're dealing with SQL Server, and it's clear that you are. But since the question title just says SQL, I should mention that there are some forms …

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 …

In the Jet Data Server Manager, I am trying to create a custom field using the transformation custom SQL functionality, but I cannot seem to write the correct SQL code.

Which of these queries is the faster? NOT EXISTS: SELECT ProductID, ProductName FROM Northwind..Products p WHERE NOT EXISTS ( SELECT 1 FROM Northwind..[Order Details] …

SQL Server CROSS APPLY and OUTER APPLY over JOINS As suggested in this article, there is no performance difference between them for normal join operations (INNER AND CROSS).

Sep 23, 2012 · 353 The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also …

37 Precision, Scale, and Length in the SQL Server 2000 documentation reads: Precision is the number of digits in a number. Scale is the number of digits to the right of the decimal point in a …