SQL Training

❮ Previous SQL Editor Next ❯ SQL Insert SQL INSERT statement is a SQL query. It is used to insert a single or multiple records in a table. There are two ways to insert data in a table: 1. Specify both the column names and the values to be inserted: 2. If you are adding […]

❮ Previous SQL Editor Next ❯ SQL Select In SQL IN is an operator used in a SQL query to help reduce the need to use multiple SQL “OR” conditions. The IN operator allows you to specify multiple values in a WHERE clause. It is used in SELECT, INSERT, UPDATE, or DELETE statements. Example: Expression

❮ Previous SQL Editor Next ❯ SQL Select Aliases An alias is created with the AS keyword. SQL ‘AS’ is used to assign a new name temporarily to a table column or even a table. It makes an easy presentation of query results and allows the developer to label results more accurately without permanently renaming

❮ Previous SQL Editor Next ❯ SQL Select Top The SELECT TOP statement in SQL shows the limited number of records or rows from the database table. The TOP clause in the statement specifies how many rows are returned. It shows the top N number of rows from the tables in the output. This clause

❮ Previous SQL Editor Next ❯ Installing SSMS (SQL Server Management Studio) SQL Server Management Studio (SSMS) is a crucial tool for working with SQL Server databases. To install SSMS, you can follow a step-by-step installation process provided by Microsoft. The Developer Edition is one of the versions you can download, which is often suitable

❮ Previous SQL Editor Next ❯ SQL Select Count The SQL COUNT() is a function that returns the number of records of the table in the output. This function is used with the SQL SELECT statement. Let’s take a simple example: If you have a record of the voters in the selected area and want