In SQL, aggregate functions work on groups of data; for example, SUM(sales) shows the total of all the values in the sales column. It’s useful to know about this function when you want to put data into groups and show the total for each group....
Database Collation Collation SQL_Latin1_General_CP1_CI_AS Maintenance window Maintenance window System default (5pm to 8am) In the Tags tab, consider assigning Azure tags to all your Azure assets. For example, create the "Owner" or "CreatedBy" tag to identify who created the resource. Al...
Sets Transact-SQL and query processing behaviors to be compatible with the specified version of the Database Engine.
SQL data masking is the practice of replacing sensitive data from SQL data sources with fictitious but realistic values. The masked data retains its usability for use cases like testing, but it prevents the proliferation of sensitive data, such aspersonally identifiable information (PII), from non-...
DROP DATABASE IF EXISTS DataBase_Name; If the database exists, then the query will remove the database from the SQL Server, but if the database doesn't exist, the warning output is displayed. Example 1:Write a query to remove the database with the IF EXISTS parameter. ...
A database models real-life entities like professors and universities by storing them in tables. Each table contains data from a single entity type. This reduces redundancy by storing entities only once. For example, there only needs to be one row of data containing a certain company's details...
If you do not already have a database connection to the third-party database to be migrated, create one. (For migrations other than from Microsoft Access, you should set the third party JDBC driver preference before creating the connection.) For example, create a database connection namedSales...
When you select a collation for your server, database, column, or expression, you're assigning certain characteristics to your data. These characteristics affect the results of many operations in the database. For example, when you construct a query by using ORDER BY, the sort order of your...
For example: Relational databases can be accessed using Structured Query Language or SQL. Every database will support ANSI SQL that is the standard SQL but also will have its own syntax to facilitate in some operations. In this tutorial, you will learn ANSI SQL so that you can work with ...
The job step's action will not be executed in the excluded database. Example 4 shows a target group that contains an elastic pool as a target. Similar to Example 2, the pool will be dynamically enumerated at job run time to determine the list of databases in the pool. Example 5 and ...