There are two main types of user-defined functions in SQL based on the data they return: 1.User-defined Scalar functions These types of functions return a single value like float, int, varchar, datetime and so on.. 2. Table-Valued functions ...
W3Schools SQL Tutorial: If you would like to explore a detailed tutorial of SQL, this is the perfect place to start. This tutorial includes interactive examples you can edit, test, and recreate. Use it as a reference or complete the whole tutorial to practice using SQL. Click the greenStar...
SQL query, specified as a string scalar or character vector. You can specify the SQL query as a nested query or as a stored procedure. For information about the SQL query language, see the SQL Tutorial on the W3Schools website. Example: {CALL getSupplierInfo('New York")} Data Types: ...
What are user-defined functions? What are the types of user-defined functions that can be created? (Allow defining its own T-SQL functions that can accept zero or more parameters and return a single scalar data value or a table data type.• Scalar User-defined Function returns one of the...
9. Use of aggregate functions The aggregate function is used to calculate a set of values and return a single scalar value for reporting or decision purpose. We often use aggregate functions with the GROUP BY and HAVING clauses of the SELECT statement. ...
SQL query, specified as a string scalar or character vector. You can specify the SQL query as a nested query or as a stored procedure. For information about the SQL query language, see the SQL Tutorial on the W3Schools website. Example: {CALL getSupplierInfo('New York")} Data Types: ...