Semicolon is the standard way to separate each SQL statement in database systems that allow more than one SQL statement to be executed in the same call to the server.

Summary: in this tutorial, you’ll learn about SQL syntax that helps you to write SQL statements effectively. SQL (Structured Query Language) is the language you use to communicate with the …

Jul 23, 2025 · Creating and managing databases in SQL involves various commands and concepts that handle the structuring, querying, and manipulation of data. In this guide, we will see a …

SQL tests WHEN conditions in the order they appear in the source. If the source does not specify an ELSE expression, SQL defaults to ELSE NULL. An abbreviated syntax called "simple case" can also …

Feb 17, 2021 · Below is a comprehensive list of SQL commands, organized by the top-level of each (e.g. SELECT TOP is within the SELECT category). If you’re on a journey to learn SQL and you’ve …

Nov 18, 2025 · Using <> in a simple query. The following example returns all rows in the Production.ProductCategory table that do not have value in ProductCategoryID that is equal to the …

SQL syntax is a unique set of rules and guidelines to be followed while writing SQL statements. This tutorial gives you a quick start with SQL by listing all the basic SQL Syntax. All the SQL statements …

To effectively write SQL queries and commands, understanding the basic syntax rules is essential. SQL syntax defines how you structure commands so the database can interpret them correctly. A SQL …

To write a single-line comment start the line with two consecutive hyphens (--). For example: However to write multi-line comments, start the comment with a slash followed by an asterisk (/*) and end the …

SQL syntax is the set of rules and patterns that define how you write commands to manage and query databases. Think of it as the grammar of a language—once you know the basics, you can form …