This SQL tutorial explains how to use remarks within your SQL statements with syntax and examples. Description In SQL, you can comment your code just like any different language. Comments can show up on a single line or span across ...

This SQL tutorial explains how to create and drop indexes with syntax and examples. What is an Index in SQL? An index is a performance-tuning method of permitting faster retrieval of records. An index creates an entry for every price ...

This SQL tutorial explains how to create and drop a main key in SQL with syntax and examples. What is a primary key in SQL? In SQL, a primary key is a single area or mixture of fields that uniquely ...

This SQL tutorial explains how to create, update, and drop SQL VIEWS with syntax and examples. Description The SQL VIEW is, in essence, a virtual desk that does now not physically exist. Rather, it is created by a SQL statement ...

This SQL tutorial explains how to create SQL LOCAL TEMPORARY tables with syntax and examples. Description SQL LOCAL TEMPORARY TABLES are distinct within modules and embedded SQL packages inside SQL sessions. Syntax The syntax for DECLARE LOCAL TEMPORARY TABLE in ...

This SQL tutorial explains how to create SQL GLOBAL TEMPORARY tables with syntax and examples. Description SQL GLOBAL TEMPORARY TABLES are tables that are created distinct within SQL sessions. Syntax The syntax for CREATE GLOBAL TEMPORARY TABLE in SQL is: ...

This SQL tutorial explains how to use the SQL DROP TABLE statement with syntax and examples. Description The SQL DROP TABLE declaration approves you to cast off or delete a desk from the SQL database. Syntax The syntax for the ...

This SQL tutorial explains how to use the SQL ALTER TABLE declaration to add a column, adjust a column, drop a column, rename a column or rename a desk (with a lot of clear, concise examples). We’ve additionally brought some ...

This SQL tutorial explains how to use the SQL CREATE TABLE AS assertion with syntax and examples. Description You can also use the SQL CREATE TABLE AS declaration to create a desk from an existing desk by way of copying ...

This SQL tutorial explains how to use the SQL CREATE TABLE statement with syntax, examples, and exercise exercises. Description The SQL CREATE TABLE assertion lets in you to create and outline a table. Syntax The syntax for the CREATE TABLE ...