How do you write a comment in SQL?

How do you write a comment in SQL?

Comments Within SQL Statements

1. Begin the comment with a slash and an asterisk (/*). Proceed with the text of the comment. This text can span multiple lines.
2. Begin the comment with — (two hyphens). Proceed with the text of the comment. This text cannot extend to a new line.

What is a comment in SQL?

Comments are used to explain sections of SQL statements, or to prevent execution of SQL statements. Note: The examples in this chapter will not work in Firefox and Microsoft Edge! Comments are not supported in Microsoft Access databases. Firefox and Microsoft Edge are using Microsoft Access database in our examples.

How do I comment a stored procedure in SQL?

To create line comments you just use two dashes “–” in front of the code you want to comment. You can comment out one or multiple lines with this technique.

How do I comment out code in SQL Server?

To comment out lines of code in SQL Server Management Studio (SSMS) Query Window, select lines of code you want to comment out and hit the keyboard shortcut ‘CTRL+K’ followed by ‘CTRL+C’.

Are there comments in SQL?

In SQL, you can comment your code just like any other language. Comments can appear on a single line or span across multiple lines.

How do you comment in SQL Workbench?

In MySQL, a comment started with — symbol is similar to a comment starting with # symbol. When using the — symbol, the comment must be at the end of a line in your SQL statement with a line break after it. This method of commenting can only span a single line within your SQL and must be at the end of the line.

How do I write a comment in MySQL?

Can you give an example of stored procedure?

There can be a case when a stored procedure doesn’t returns anything. For example, a stored procedure can be used to Insert , delete or update a SQL statement. For example, the below stored procedure is used to insert value into the table tbl_students .

How do I write comments in SQL Server Management Studio?

The keyboard shortcut to comment text is CTRL + K, CTRL + C. The keyboard shortcut to uncomment text is CTRL + K, CTRL + U.

How do I comment out in MySQL?

What are the SQL comments?

The SQL Comments are of two type one is single line comments and other is multi-line comment.User can explain the functionality of SQL statement using those comments. — Comment to be written. The two dash lines indicates the single line comment in SQL statements.

How to use multi-line comments in SQL?

The basic use of multi-line comments are commenting multiple lines. In above statement the Employee and department tables are commented by multi-line comments in SQL.The multi-line comments can ignore more than one SQL statements. User can write any multiple line explanation with using multi-line comments in SQL.

What do the two dash lines mean in SQL comments?

The SQL Comments are of two type one is single line comments and other is multi-line comment.User can explain the functionality of SQL statement using those comments. The two dash lines indicates the single line comment in SQL statements.

Can a comment be used on the same line?

It can be used in a same line as SQL code, on a separate line or within code. Everything between the opening and the closing character pair / * is considered a part of a comment. Multiple-line /* */ comments cannot span a batch.