How do I comment out a line in MySQL workbench?

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.

How do I comment a line in MySQL workbench?

MySQL Server supports three comment styles: From a # character to the end of the line. From a — sequence to the end of the line. In MySQL, the — (double-dash) comment style requires the second dash to be followed by at least one whitespace or control character (such as a space, tab, newline, and so on).

How do I comment out a single line in MySQL?

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.

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How do you comment out a line in SQL?

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 you comment on workbench?

MySQL supports three comment styles:

  1. 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. …
  2. From a ‘#’ to the end of the line. …
  3. C-style comment /**/ can span multiple lines.

How do I add comments to a table in MySQL?

The comments can be added to the MySQL columns while creating a table by adding the COMMENT keyword after the column definition, as shown above for column emp_name. The table is created successfully with comments. Confirm the same in column information using MySQL workbench.

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.

How do I comment in MySQL w3schools?

Multi-line comments start with /* and end with */ . Any text between /* and */ will be ignored.

How do I write an if statement in MySQL?

The syntax for the IF-THEN-ELSE statement in MySQL is: IF condition1 THEN {… statements to execute when condition1 is TRUE…} [ ELSEIF condition2 THEN {…

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Which is the comment symbol in MySQL Mcq?

In MySQL Server, we can write the comments in mainly three ways that are given below: Using # symbol. Using – symbol. Using /* and */ symbol.

How do I comment out a line in SQL Server?

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 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 do I comment multiple lines in 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 group by in MySQL?

The MYSQL GROUP BY Clause is used to collect data from multiple records and group the result by one or more column. It is generally used in a SELECT statement. You can also use some aggregate functions like COUNT, SUM, MIN, MAX, AVG etc. on the grouped column.

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Is MySQL case sensitive?

Table names are stored in lowercase on disk and name comparisons are not case-sensitive. MySQL converts all table names to lowercase on storage and lookup. This behavior also applies to database names and table aliases. … InnoDB table names and view names are stored in lowercase, as for lower_case_table_names=1 .

What is union clause?

The Union Clause is used to combine two separate select statements and produce the result set as a union of both the select statements. NOTE: The fields to be used in both the select statements must be in same order, same number and same data type.

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