How do I comment out in Oracle SQL Developer?

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.

How do you comment in PL SQL?

PL/SQL supports two comment styles: single-line and multi-line. A double hyphen ( – – ) anywhere on a line (except within a character literal) turns the rest of the line into a comment. Multi-line comments begin with a slash-asterisk ( /* ) and end with an asterisk-slash ( */ ). For more information, see “Comments”.

How do we represent comments in Oracle?


  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 enable query results in Oracle SQL Developer?

How to Turn Output On in SQL Developer

  1. Open Oracle Developer.
  2. Click “View” and then click “Dbms Output.”
  3. Click the green “+” sign in the window that opens and select the database connection from which you want output. Output will now appear for that database in a new tab.
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How do I comment multiple rows in SQL?

To comment or uncomment multiple lines in the web interface > SQL Worksheet:

  1. Highlight multiple lines in the Worksheet. Begin ; …
  2. Press CMD + / (Mac) or CTRL + / (Windows). The highlighted lines are commented out. …
  3. Press CMD + / (Mac) or CTRL + / (Windows) again. The comments are removed from the highlighted lines.

How do I declare a single line comment in PL SQL?

Single-line comments begin with a double hyphen ( – – ) anywhere on a line and extend to the end of the line. Multi-line comments begin with a slash-asterisk ( /* ), end with an asterisk-slash ( */ ), and can span multiple lines.

How do I comment in Sqlplus?

The REMARK command must appear at the beginning of a line, and the comment ends at the end of the line. A line cannot contain both a comment and a command. A “–” at the end of a REMARK line is treated as a line continuation character. For details on entering comments in scripts using the SQL comment delimiters, /* …

Why are comments used in Python?

A Python comment is a line of text in a program that is not executed by the interpreter. Comments are used during debugging to identify issues and to explain code. Comments start with a hash character (#).

Why use full join in SQL?

SQL full outer join is used to combine the result of both left and right outer join and returns all rows (don’t care its matched or unmatched) from the both participating tables.

What are SQL comments?

SQL Comments are used to explain the sections of the SQL statements, and used to prevent the statements of SQL. In many programming languages, comments matter a lot. A Microsoft Access database does not support the comments. So, Mozilla Firefox and Microsoft Edge use the Microsoft Access database in the examples.

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What is the shortcut for comment in Oracle SQL?

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.

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