How do you comment on a workbench line?
i.e. The CONTROL + “/” using the division key above the keypad instead of the “?/” key on the main keyboard. It’s not nearly as convenient, but it works for me with Windows 7 and MYSQL Workbench 6.1. Instead you can also simple type “#” at the Point of line you want to comment.
Can you write comments in SQL?
In SQL Server, a comment that starts with /* symbol and ends with */ and can be anywhere in your SQL statement. This method of commenting can span several lines within your SQL.
What is the use of comment command in SQL?
Comments are used to explain sections of SQL statements, or to prevent execution of SQL statements.
How do you comment out a view in SQL?
Use the COMMENT statement to add a comment about a table, view, materialized view, or column into the data dictionary. To drop a comment from the database, set it to the empty string ‘ ‘.
How do I comment in SQL code?
Comments Within SQL Statements
- Begin the comment with a slash and an asterisk (/*). Proceed with the text of the comment. This text can span multiple lines. …
- Begin the comment with — (two hyphens). Proceed with the text of the comment. This text cannot extend to a new line.
How do you comment out a line in SQL?
The syntax for a comment in a line of SQL code is a double hyphen ( — ) at the beginning of the line. The comment affects all of the SQL code in the line.
How do I comment in a stored procedure?
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. In this example the entire line is commented out.
How do I comment multiple lines in Oracle SQL Developer?
6 Answers. In SQL Developer, I highlight all lines of PL/SQL that I want commented and use Ctrl + / . Obviously, you would like a way to comment and uncomment multiple lines quickly. This will put — in front of each line you have highlighted.
What is the shortcut for comment in SQL Developer?
Hi, In SQL Developer you can comment a line or a block using “Source -> Toggle Line Comments” (Ctrl-Slash), but it would be nice to have a button that allows you to do it not only for line or block, but also for a part of a line.
What are the commands of DDL?
Data Definition Language (DDL) commands:
- CREATE to create a new table or database.
- ALTER for alteration.
- Truncate to delete data from the table.
- DROP to drop a table.
- RENAME to rename a table.
How many types comment lines exist in SQL?
There are three types of comments, which are given below: Single line comments. Multi-line comments. Inline comments.
How many types of comments are there in SQL?
It has 2 types: Boolean based SQLI. Time-based SQLI.
When should you use the set unused command?
Refer to Section 13 Lesson 3. You should use it if you think the column may be needed again later. You should only use this command if you want the column to still be visible when you DESCRIBE the table. Never, there is no SET UNUSED command.
How do I write a comment in MySQL?
MySQL supports three comment styles:
- From a ‘– ‘ to the end of the line. The double dash-comment style requires at least whitespace or control character (space, tab, newline, etc) after the second dash. …
- From a ‘#’ to the end of the line. …
- C-style comment /**/ can span multiple lines.
What is the shortcut for comment in SQL Server?
The keyboard shortcut to comment text is CTRL + K, CTRL + C. The keyboard shortcut to uncomment text is CTRL + K, CTRL + U.