Syntax for Transact-SQL scalar functions. syntaxsql 复制 CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ]
Examples for CREATE FUNCTION (SQL table) Example 1 Define a table function, JTABLE, to return a table with 3 columns: CREATE FUNCTION JTABLE (COLD_VALUE CHAR(9), T2_FLAG CHAR(1)) RETURNS TABLE (COLA INT, COLB INT, COLC INT) LANGUAGE SQL SPECIFIC DEPTINFO NOT DETERMINISTIC READS SQL ...
Here, the SQL command checks if a table namedCompaniesexists, and if not, it creates a table with specified columns. Create Table Using Another Existing Table In SQL, we can create a new table by duplicating an existing table's structure. Let's look at an example. -- create a backup t...
Additional Examples Table type in a table-valued function as a returned value Table-Valued Function Expression (U-SQL) for examples on how to call the above functions. See Also U-SQL Functions U-SQL Table-valued Functions DROP FUNCTION (U-SQL) Table-Valued Function Expression (U-...
In this statement, exactly the same considerations apply as for the parameters of SQL functions described previously in data-type1 for function parameters. ROW Specifies that the output of the function is a single row. If the function returns more than one row, an error is returned (SQLSTATE...
obj_file,link_symbol This form of the AS clause is used for dynamically loadable C language functions when the function name in the C language source code is not the same as the name of the SQL function. The stringobj_fil...
In SQL, the INDEX constraint in a column makes it faster to retrieve data when querying that column. In this tutorial, you will learn about the SQL CREATE INDEX statement with the help of examples.
In multistatement table-valued functions, **@**return_variableis a TABLE variable, used to store and accumulate the rows that should be returned as the value of the function. **@**return_variablecan be specified only for Transact-SQL functions and not for CLR functions. ...
SQL Kopiraj SELECT EmployeeID, FirstName, LastName, JobTitle, RecursionLevel FROM dbo.ufn_FindReports(1); For more information and examples of inline table-valued functions (inline TVFs) and multi-statement table-valued functions (MSTVFs), see CREATE FUNCTION....
Syntax for Transact-SQL inline table-valued functions. syntaxsql Copy CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS TABLE [...