How do you return part of a string in SQL?
SQL Server SUBSTRING() Function
- Extract 3 characters from a string, starting in position 1: SELECT SUBSTRING(‘SQL Tutorial’, 1, 3) AS ExtractString;
- Extract 5 characters from the “CustomerName” column, starting in position 1: …
- Extract 100 characters from a string, starting in position 1:
How do you return data in SQL?
The RETURN statement is used to unconditionally and immediately terminate an SQL procedure by returning the flow of control to the caller of the stored procedure. It is mandatory that when the RETURN statement is executed that it return an integer value.
How do you break a line in SQL query?
— Using both rn SELECT ‘First line. rnSecond Line. ‘ AS ‘New Line’; — Using both n SELECT ‘First line.
What does a SQL query return?
The SQL SELECT statement returns a result set of records, from one or more tables. A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, SELECT is the most commonly used data manipulation language (DML) command.
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.
What is difference between stored procedure and function?
The function must return a value but in Stored Procedure it is optional. Even a procedure can return zero or n values. Functions can have only input parameters for it whereas Procedures can have input or output parameters. Functions can be called from Procedure whereas Procedures cannot be called from a Function.
How do you return a stored procedure in SQL?
You can use the return statement inside a stored procedure to return an integer status code (and only of integer type). By convention a return value of zero is used for success. If no return is explicitly set, then the stored procedure returns zero. You should use the return value for status codes only.
Does stored procedure return value?
A stored procedure does not have a return value but can optionally take input, output, or input-output parameters. A stored procedure can return output through any output or input-output parameter.
What is N in SQL Server?
The “N” prefix stands for National Language in the SQL-92 standard, and is used for representing unicode characters. Any time you pass Unicode data to SQL Server you must prefix the Unicode string with N . It is used when the type is from NVARCHAR , NCHAR or NTEXT .
How do you store line breaks in database?
Just put the output text between <pre></pre> tags, that will preserve the line breaks. The CSS white-space: pre-line; option is the best because the <pre> tag does not wrap lines of text.