SQL Server - What Is a SELECT Query Statement in SQL Server

What Is a SELECT Query Statement in SQL Server

Q

What Is a SELECT Query Statement in SQL Server?

✍: FYIcenter.com

A

The SELECT statement is also called the query statement. It is the most frequently used SQL statement in any database application. SELECT statements allows you to retrieve data from one or more tables or views, with different selection criteria, grouping criteria and sorting orders.

A SELETE statement has the following basic syntax:

SELECT select_list 
   FROM table_source 
   WHERE search_condition
   GROUP BY group_by_expression 
   HAVING search_condition
   ORDER BY order_by_expression

Here is an example of a SELECT statement with all clauses mentioned above:

SELECT SalesOrderID, SUM(LineTotal) AS TotalPrice
   FROM SalesLT.SalesOrderDetail
   WHERE ModifiedDate > '2004-05-01'
   GROUP BY SalesOrderID
   HAVING COUNT(*) > 30
   ORDER BY TotalPrice DESC

⇒Using SELECT Statements and GROUP BY Clauses in SQL Server

⇒⇒SQL Server Database Tutorials

2016-10-26, 550👍, 0💬

Selecting All Columns of All Rows from a Table in SQL Server
How To Select All Columns of All Rows from a Table with a SELECT statement in SQL Server? The simplest query statement is the one that selects all columns of all rows from a single table: "SELECT * FROM tableName". The (*) in the SELECT clause tells the query to return all columns. The missing WHERE... 2016-10-26, 645👍, 0💬

Using ORDER BY with UNION Operators in SQL Server
How To Use ORDER BY with UNION Operators in SQL Server? If you need to sort the output from two queries grouped together with a UNION operator, you need to apply the ORDER BY clause at the group level, not at the subquery level. Note that SQL Server and MySQL react differently to the ORDER BY clause... 2016-10-26, 619👍, 0💬

Testing Table for SELECT Statements in SQL Server
How To Create a Testing Table with Test Data to try with SELECT statements in SQL Server? If you want to follow the tutorial exercises presented in this collection, you need to create a testing table and insert some test data, as shown in the following sample script: CREATE TABLE fyi_links (id INTEG... 2016-10-26, 593👍, 0💬

What Is a SELECT Query Statement in SQL Server
What Is a SELECT Query Statement in SQL Server? The SELECT statement is also called the query statement. It is the most frequently used SQL statement in any database application. SELECT statements allows you to retrieve data from one or more tables or views, with different selection criteria, groupi... 2016-10-26, 551👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.