Q&A

How do you comment out a section of code?

How do you comment out a section of code?

You can comment out one or more lines of code in any C/C++ editor view. The leading characters // are added to the beginning of each line when commenting one or more lines of code. You can also block comment multiple lines of code using the characters /* */ .

How do I comment out a block in SQL Developer?

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. Do the same command to uncomment.

How do you comment out a section in R?

If you use RStudio, you can use the keyboard shortcut Ctrl + Shift + C ( Command + Shift + C on macOS) to comment out a line of text.

How do I comment out SQL in SQL Developer?

Comments

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

How do I comment multiple lines of code in SQL?

Procedure

  1. Select the SQL code that you want to comment out or uncomment. For a single line, click anywhere in the line of code. For multiple lines, drag the pointer through the lines of code.
  2. Right-click the selected SQL code, and then select Toggle Comment.

How do you comment out code in R?

How to add multi-line or block comments in R? There is also a short cut for this; so, after selecting your code you can just click Ctrl + shift + C and voilà. Your code is commented.

How do I comment out chunks of code in R?

  1. Select the block of code that you want to comment.
  2. Press Ctrl + Shift + C.

How do you comment out a line in SQL?

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’. You can also select the lines of code and press the ‘Comment out the selected lines.’ button:

How do you write comments in SQL?

You can write a comment in SQL & PLSQL statements in two easy ways: Begin the comment section with a forward slash and an asterisk (/*). Proceed with the text of the comment. This text can be spanning multiple lines.

What is a comment line in SQL?

A comment is text that the PL/SQL compiler ignores. Its primary purpose is to document code, but you can also disable obsolete or unfinished pieces of code by turning them into comments. PL/SQL has both single-line and multiline comments. Turns the rest of the line into a single-line comment.