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 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 …

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 …

Apr 29, 2014 · sql server: + (infix operator), concat ( vararg function ) Edit : Now Azure SQL also supports ANSI SQL standard || operator for string concatenation. Docs link.

SQL直来直去，只要定义必要的输入输出，没有对过程的控制。 了解SQL的大致情况后，我们再来看看如何学？ SQL是所有数据库查询的语言，sql由于本身结构化的特点，非常容易入手。

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 of SQL such …

I need to run a select statement that returns all rows where the value of a column is not distinct (e.g. EmailAddress). For example, if the table looks like below: CustomerName EmailAddress A...

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是一种用于处理数据的语言，就像我们说的汉语、英语一样，有特定的语法结构，让我们灵活地处理数据。 SQL并不难学，首先得理解 S Q L 三个字母分别代表什么。 Structured Query …

I have a query that is gathering information based on a set of conditions. Basically I want to know if a location has paid out more than $50 for the day OR the comment section has the word "filter...