syntaxsql 复制 <order_clause> ::= { <column_name_in_clr_table_type_definition> [ ASC | DESC ] } [ , ...n ] <method_specifier> ::= assembly_name.class_name.method_name <clr_function_option> ::= { [ RETURNS NULL O
1 2-- Compose SQL functions.>CREATEFUNCTIONsquare(xDOUBLE)RETURNSDOUBLERETURNarea(x, x); >SELECTc1,square(c1)ASsquareFROMt; 0 0.0 1 1.0-- Create a non-deterministic function>CREATEFUNCTIONroll_dice()RETURNSINTNOTDETERMINISTICCONTAINSSQLCOMMENT'Roll a single 6 sided die'RETURN(rand...
In this article Syntax Arguments Returns Diagnostics Show 5 more Conformance Version Introduced: ODBC 1.0 Standards Compliance: ISO 92 Summary SQLGetFunctionsreturns information about whether a driver supports a specific ODBC function. This function is implemented in the Driver Manager; it can also be ...
SQLFetch fetches the next rowset of data from the result set and returns data for all bound columns. Syntax C++ Copy SQLRETURN SQLFetch( SQLHSTMT StatementHandle); Arguments StatementHandle [Input] Statement handle. Returns SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_NO_DATA, SQL_STILL_EXECUTI...
In this article Syntax Arguments Returns Diagnostics Show 8 more Conformance Version Introduced: ODBC 3.0 Standards Compliance: ISO 92 Summary SQLFreeHandle frees resources associated with a specific environment, connection, statement, or descriptor handle. Note This function is a generic function ...
returned data types include a row type, array type, or cursor type; b) Must be used if the RETURNS TABLE clause specifies any syntax other than a column-list; c) Not supported if RETURNS ROW is specified; d) Not supported when defining a table function in a partitioned database ...
Syntax for CREATE FUNCTION (SQL table) CREATE FUNCTIONfunction-name( ,parameter-declaration )function-definitionWRAPPEDobfuscated-statement-text parameter-declaration: parameter-nameparameter-type parameter-type: data-type1TABLE LIKEtable-nameview-nameAS LOCATOR data-type1, data-type2: built-in-typedist...
Both forms define how the window function should process query rows. They differ in whether the window is defined directly in theOVERclause, or supplied by a reference to a named window defined elsewhere in the query: ForOVER (window_spec)syntax, the window specification has several parts, all...
in Functions Basic SELECT Statements Filtering Sorting Grouping JOIN Subquery Alias Set Operations WITH...AS CASE...WHEN OVER Clause Flink OpenSource SQL 1.12 Syntax Reference Flink Opensource SQL 1.10 Syntax Reference Historical Versions Identifiers Operators User Guide (Paris Region) API Reference (...
SQL SERVER中的用户定义函数(User Defined Functions 简称UDF)分为标量函数(Scalar-Valued Function)和表值函数(Table-Valued Function)。其中表值函数又分为Inline table-valued functions和Multistatement table-valued functions。 用户定义函数(UDF)在 SQL Server 中发挥重要的作用。用户定义函数可以用于执行复杂的逻辑...