How do I display a character in SQL?

How do I view a character in SQL?

SQL Server CHARINDEX() Function

The CHARINDEX() function searches for a substring in a string, and returns the position. If the substring is not found, this function returns 0. Note: This function performs a case-insensitive search.

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.

How do I display a value in SQL?

The SQL SELECT Statement

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 char () in SQL Server?

The CHAR() function returns the character based on the ASCII code.

How do you check if a character is present in a string in SQL?

Method 1 – Using CHARINDEX() function

This function is used to search for a specific word or a substring in an overall string and returns its starting position of match. In case no word is found, then it will return 0 (zero).

How do I get the first character of 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:

What is the meaning of like 0 0?

Feature ends with two 0’s. Feature has more than two 0’s. Feature has two 0’s in it, at any position.

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

SELECT *FROM yourTableName ORDER BY RIGHT(yourColumnName,3) yourSortingOrder; Just replace the ‘yourSortingOrder‘ to ASC or DESC to set the ascending or descending order respectively. Here is the query to order by last 3 chars.

How do you do not in SQL?

Overview. The SQL Server NOT IN operator is used to replace a group of arguments using the <> (or !=) operator that are combined with an AND. It can make code easier to read and understand for SELECT, UPDATE or DELETE SQL commands.

How do you set a variable in SQL?

Variables in SQL procedures are defined by using the DECLARE statement. Values can be assigned to variables using the SET statement or the SELECT INTO statement or as a default value when the variable is declared. Literals, expressions, the result of a query, and special register values can be assigned to variables.

How can I see all tables in SQL?

Then issue one of the following SQL statement:

1. Show all tables owned by the current user: SELECT table_name FROM user_tables;
2. Show all tables in the current database: SELECT table_name FROM dba_tables;
3. Show all tables that are accessible by the current user: