Comments Within SQL Statements - 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 (*/).
- Begin the comment with -- (two hyphens). Proceed with the text of the comment. This text cannot extend to a new line.
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Furthermore, what is the shortcut to comment out 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'.
Also Know, what are the SQL commands? SQL commands are grouped into four major categories depending on their functionality: Data Definition Language (DDL) - These SQL commands are used for creating, modifying, and dropping the structure of database objects. The commands are CREATE, ALTER, DROP, RENAME, and TRUNCATE.
People also ask, what does /* mean in SQL?
/* 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 we represent comments in Oracle?
In Oracle, 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.
Related Question Answers
What does f6 do in SQL?
F5 or Ctrl + E -- Execute a query. F1 -- Help for Query Analyzer. SHIFT+F1 -- Help for the selected Transact-SQL statement. F6 -- Switch between query and result panes.What does Ctrl L do in SQL Server?
Typing CTRL+L executes either the selected text in the Query Editor window (or all the statements in the window if nothing is selected) and displays the execution plan.How do I enable Ctrl R in SQL Server?
Solution: 2 - Go to the Tools Menu in SSMS and Select Options.
- Select the Keyboard section under the Environments tab.
- Search for the text “Window.
- Select the “SQL Query Editor” option from the dropdown under “Use new shortcut in” and type CTRL+R in “Press shortcut keys” TextBox.
How do I enable shortcut keys in SQL Server?
Adding a new keyboard shortcut in SSMS. - Select the right command to set the shortcut on. Type Query.
- Change the Use new shortcut in to SQL Query Editor.
- Click on Press shortcut keys: and hit the key combination you want to use. I'm using CTRL-F8 since it's free.
- Hit the Assign button.
- Hit the Ok button (Unless you want to assign more shortcuts.
How do I close the results window in SQL Server?
Using Shortcut Keys In older versions of SSMS, the simple solution is to use the Ctrl+R shortcut to toggle between showing and hiding the results pane. Here is a sample query window in SSMS with just the Editor section. After we execute the code, half of the screen is now taken up by the Results pane.How do I select an entire line in SQL Server?
5 Answers. By the way, you can copy (or cut) an entire line by just pressing CTRL + C and CTRL + X without having any selection. Same should work in Visual Studio and other good text editors.What does Alt f1 do in SQL Server?
Enter the SQL Server Management Studio (SSMS) shortcut key ALT + F1. Highlighting a table object in code and then pressing ALT + F1 with in the SSMS IDE will execute the equivalent command of sp_help 'object_name' where object_name is the name of the highlighted object.How can I get table structure in SQL Server using shortcut keys?
Shortcut Key for Table Details in Sql Server Management Studio. and press ALT + F1 it will display the details of that table.What does this symbol <> mean?
This symbol < means less than, for example 2 < 4 means that 2 is less than 4. ≤ ≥ These symbols mean 'less than or equal to' and 'greater than or equal to' and are commonly used in algebra.What does <> SQL mean?
SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.What is %s in SQL?
%s is a placeholder used in functions like sprintf. $sql = sprintf($sql, "Test"); This would replace %s with the string "Test". It's also used to make sure that the parameter passed actually fits the placeholder. You might use %d as a placeholder for digits, but if sprintf would receive a string it would complain.What is the use of <> in SQL?
The SQL IN condition (sometimes called the IN operator) allows you to easily test if an expression matches any value in a list of values. It is used to help reduce the need for multiple OR conditions in a SELECT, INSERT, UPDATE, or DELETE statement.What is foreign key in DBMS?
A foreign key is a column or group of columns in a relational database table that provides a link between data in two tables. The concept of referential integrity is derived from foreign key theory. Foreign keys and their implementation are more complex than primary keys.How do I start SQL?
The most obvious way to start SQL Server is by using Enterprise Manager. Select the SQL Server system you want to start, then select Start from the pop-up menu. You can start SQL Server on both the local system and remote servers as long as you have rights to start services on the remote systems.What is data type in SQL?
A data type is an attribute that specifies the type of data that the object can hold: integer data, character data, monetary data, date and time data, binary strings, and so on. SQL Server supplies a set of system data types that define all the types of data that can be used with SQL Server.What is schema in SQL?
A schema in a SQL database is a collection of logical structures of data. From SQL Server 2005, a schema is an independent entity (container of objects) different from the user who creates that object. In other words, schemas are very similar to separate namespaces or containers that are used to store database objects.How do I view comments in Oracle?
You can view the comments on a particular operator by querying the data dictionary views USER_OPERATOR_COMMENTS , DBA_OPERATOR_COMMENTS , or ALL_OPERATOR_COMMENTS . Specify the name of the indextype to be commented. If you omit schema , then Oracle Database assumes the indextype is in your own schema.IS NOT NULL SQL?
The IS NOT NULL condition is used in SQL to test for a non-NULL value. It returns TRUE if a non-NULL value is found, otherwise it returns FALSE. It can be used in a SELECT, INSERT, UPDATE, or DELETE statement. 
