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The IS NULL command is used to test for empty values (NULL values). The following SQL lists all customers with a NULL value in the "Address" field.

In the nested CASE statement example, the database first checks the state field. If the check returns true, it evaluates the sub conditions. For.

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A mechanism to work with one row or a small block of rows at a time. Cursors are an extension to result sets that provide that mechanism.

Unfortunately, your only option is to go back to the old backup and restore. You can restore to a separate database and then perform a comparison on just that.

The DISTINCT keyword is used in SQL to eliminate duplicate values from the result set of a SELECT statement. When used, it only returns.

There are two ways to insert data in a table: By SQL insert into statement By specifying column names Without specifying column names By SQL insert into select.

The SQL CASE statement evaluates a list of conditions and adds a column with values based on the condition.

In a foreign key reference, a link is created between two tables when the column or columns that hold the primary key value for one table are.

To change the format of the date, you convert the requested date to a string and specify the format number corresponding to the format needed.

The best way to water an orchid is not to simply pour water into the top of its pot, but rather to give it a 'weekly plunge into room-temperature water'.

Maximum message size for large distribution groups: If a message is sent to 5,000 or more recipients, the message size can't exceed this limit.

Bruxism is teeth grinding or clenching that occurs when someone is not chewing. It can happen when someone is awake or asleep. Learn more.