You can comment out or uncomment a single line of code in an SQL statement, multiple adjacent lines of code, a complete SQL statement, or multiple adjacent SQL statements. The syntax for a comment in a line of SQL code is a double hyphen ( — ) at the beginning of the line.
How do I comment out a single line in SQL?
Syntax Using — symbol
In SQL Server, a comment started with — symbol 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 comment multiple lines in SQL?
To comment or uncomment multiple lines in the web interface > SQL Worksheet:
Highlight multiple lines in the Worksheet. Begin ; Press CMD + / (Mac) or CTRL + / (Windows). The highlighted lines are commented out. Press CMD + / (Mac) or CTRL + / (Windows) again. The comments are removed from the highlighted lines.
What is the shortcut for comment in SQL?
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 multiple lines in SQL Workbench?
Syntax Using /* and */ symbols
In MySQL, 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.
How do you comment a squirrel in SQL?
4 Answers
Select SQL code. Press CTRL+/ (or CMD+/ on Mac) on the keyboard.Code will be commented. If you need to uncomment it, you need to mark commented code and press the same keyboard combination CTRL+/ (or CMD+/ on Mac) on the keyboard Code will become uncommented again:
How do you comment a table 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 ‘ ‘. See Also: “Comments” for more information on associating comments with SQL statements and schema objects.
How many types comment lines exit in SQL?
SQL Comment – Single line and Multi-line Comment.
How a single and multiple line comment is given in SQL?
PL/SQL supports two comment styles: single-line and multi-line. 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.
What are the command in SQL?
There are five types of SQL commands: DDL, DML, DCL, TCL, and DQL.
How do I select a line in SQL?
There are several ways to select text as shown below, including the ability to select and edit columns.
Using SHIFT to Select Text. Using SHIFT+ALT to Select Columns. Using SHIFT+ALT to Select Columns and Insert Text. Using CTRL+SHIFT+END to Select Text. Using CTRL+SHIFT+HOME to Select Text. Using CTRL+A to Select All Text.
How do I comment multiple lines in db2?
Multi-line comments start with /* and end with */. Any text between /* and */ will be ignored.
How do I comment in SQL w3schools?
Multi-line comments start with /* and end with */ . Any text between /* and */ will be ignored.
How do I ignore a line in MySQL?
The IGNORE number LINES clause can be used to ignore lines at the start of the file. For example, you can use IGNORE 1 LINES to skip an initial header line containing column names: LOAD DATA INFILE ‘/tmp/test.
How do you insert multiple records using a single command in SQL?
INSERT-SELECT-UNION query to insert multiple records
Thus, we can use INSERT-SELECT-UNION query to insert data into multiple rows of the table. The SQL UNION query helps to select all the data that has been enclosed by the SELECT query through the INSERT statement.
