What is meant by Comment out?

(programming, transitive) To disable a section of source code by converting it into a comment. If you do not want to run this line of code, just comment it out!

How do you Comment out?

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 /* */ .

What are synonyms for comment?

Synonyms for comments. analysis, commentary, exposition, play-by-play.

What do you mean by comments?

1 : an expression of opinion either in speech or writing The most frequent comment was that service was slow. 2 : mention of something that deserves notice I’d like to make a few general comments before we begin class. comment. verb. commented; commenting.

How do you comment out a line?

A forward slash ( / ) and asterisk ( * ) are all you need to comment out a line or lines of CSS.

How do you comment out a react?

Two ways to add comments in React Native
  1. // (double forward slash) is used to comment only a single line in React Native code, but it can only be used outside of the render block. …
  2. If you want to comment on something in JSX you need to use JavaScript comments inside of curly braces like {/* Comment here /}.

What are the two types of comments?

In C/C++ there are two types of comments :

Single line comment. Multi-line comment.

What are examples of comments?

An example of a comment is a statement released in the paper that someone made about a scandal going on. A spoken remark. I have no comment on that. To comment is to make a statement, remark or express an opinion.

What are comments used for?

Comments are text notes added to the program to provide explanatory information about the source code. They are used in a programming language to document the program and remind programmers of what tricky things they just did with the code and also helps the later generation for understanding and maintenance of code.

What is the correct way to comment out in HTML?

To “comment out” in HTML, simply place the < ! ╌ ╌> tags around the code you want to hide. These tags will tell browsers not to render this code on the front end. Commenting out has two main purposes.

How do you comment out 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 out in CSS?

To comment in CSS, simply place your plain text inside /* */ marks. This tells the browser that they are notes and should not be rendered on the front end.

How do you comment out in Python?

To comment out multiple lines in Python, you can prepend each line with a hash ( # ).

What does /* mean in SQL?

a multiline comment
/* means a start of a multiline comment. For example: /* CREATE PROC A_SAMPLE_PROC BEGIN AS SELECT * FROM A_SAMPLE_TABLE END */ while — means single line comment. Keyboard shortcut for commenting in MS SQL Server Studio is Ctrl + K, Ctrl + C.

How do you comment on a statement?

Typical Tasks
  1. Comment (stating your own opinion) state your opinion and give examples and arguments that support your opinion. …
  2. Compare. find common and distinct features. …
  3. Criticize. find advantages and disadvantages. …
  4. Discuss. analyse all aspects of a problem (What is …? / Is it okay to …?) …
  5. Evaluate. analyse a problem. …
  6. Justify.

How do you comment out a snowflake?

To comment/uncomment SQL Scripts in Snowflake Web Interface,
  1. Simply select and highlight multiple lines in the Worksheet.
  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 many table can be join in SQL query?

Theoretically, there is no upper limit on the number of tables that can be joined using a SELECT statement. (One join condition always combines two tables!) However, the Database Engine has an implementation restriction: the maximum number of tables that can be joined in a SELECT statement is 64.

How do you make a SQL query on a single line?

Notepad++ – Turn big query from SQL Server into one line
  1. Open the Replace dialog ( Ctrl + H )
  2. Check the Wrap around option.
  3. Choose the Regular expression search mode.
  4. Fill in the regex (\h*\R)+ in the Find what: zone.
  5. Fill in the regex \x20 in the Replace with: zone.
  6. Click on the Replace All button.

Why do we use SQL?

The SQL IN Operator

The IN operator allows you to specify multiple values in a WHERE clause. The IN operator is a shorthand for multiple OR conditions.

What is a clustered index SQL?

Clustered indexes sort and store the data rows in the table or view based on their key values. These are the columns included in the index definition. There can be only one clustered index per table, because the data rows themselves can be stored in only one order.

What is primary key SQL?

The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields).

How do I add a primary key to a table?

Create a primary key
  1. In Object Explorer, right-click the table to which you want to add a unique constraint, and click Design.
  2. In Table Designer, click the row selector for the database column you want to define as the primary key. …
  3. Right-click the row selector for the column and select Set Primary Key.