What is str SQL?

STR() Function in SQL Server The STR() function converts a numeric value to a character value. length : It is the total length of the returned string. decimal : It is the number of places to the right of the decimal point.

How do I select a string in SQL?

SQL Server SUBSTRING() Function

  1. Extract 3 characters from a string, starting in position 1: SELECT SUBSTRING(‘SQL Tutorial’, 1, 3) AS ExtractString;
  2. Extract 5 characters from the “CustomerName” column, starting in position 1:
  3. Extract 100 characters from a string, starting in position 1:

How do you use Ltrim in SQL?

Oracle / PLSQL: LTRIM Function

  1. Description. The Oracle/PLSQL LTRIM function removes all specified characters from the left-hand side of a string.
  2. Syntax. The syntax for the LTRIM function in Oracle/PLSQL is: LTRIM( string1 [, trim_string] )
  3. Returns. The LTRIM function returns a string value.
  4. Note.
  5. Applies To.
  6. Example.

How do I display the first 3 characters in SQL?

You can use LEN() or LENGTH()(in case of oracle sql) function to get the length of a column. SELECT LEN(column_name) FROM table_name; And you can use SUBSTRING or SUBSTR() function go get first three characters of a column.

What does str () return?

The str() function returns the string version of the given object.

What is trigger in SQL?

A SQL trigger is a database object which fires when an event occurs in a database. We can execute a SQL query that will “do something” in a database when a change occurs on a database table such as a record is inserted or updated or deleted. For example, a trigger can be set on a record insert in a database table.

Is SQL query a string?

Even though the SQL value is a string, SQL Server executes the string as if it is SQL code. Transact SQL, or T-SQL, provides you with the language to create the dynamic code. It retrieves data from a database and adds data into your server’s tables.

How do you select in SQL?

SELECT Syntax

  1. SELECT column1, column2, FROM table_name;
  2. SELECT * FROM table_name;
  3. Example. SELECT CustomerName, City FROM Customers;
  4. Example. SELECT * FROM Customers;

What is Initcap in SQL?

The INITCAP function converts the first letter of each word in a string to uppercase, and converts any remaining characters in each word to lowercase. Words are delimited by white space characters, or by characters that are not alphanumeric.

How do I remove the first 3 characters in SQL?

Remove first and last character from a string in SQL Server

  1. Using the SQL Left and Right Functions. Declare @name as varchar(30)=’Rohatash’ Declare @n varchar(40) =left(@name, len(@name)-1) Select right(@n, len(@n)-1)
  2. Using the Substring and Len Functions. Declare @string varchar(50) SET @string=’rohatash’

How do I get the last 3 characters of a string in SQL?

SQL Server RIGHT() Function

  1. Extract 3 characters from a string (starting from right): SELECT RIGHT(‘SQL Tutorial’, 3) AS ExtractString;
  2. Extract 5 characters from the text in the “CustomerName” column (starting from right):
  3. Extract 100 characters from a string (starting from right):

How do I get the first character of a string in SQL?