对于CREATE FUNCTION 语句中指定的任何表或视图,不考虑 PUBLIC 以外的组特权。 调用函数时,将应用昵称所引用的表或视图的数据源的授权需求。 该连接的授权标识可以映射到不同的远程授权标识。 此语句的授权标识所拥有的特权还必须包括调用函数体中指定的 SQL 语句所需的所有特权。 要替换现有函数,语句的授权标识必须是现有函数
CREATE[ORALTER]FUNCTION[schema_name. ]function_name( [ { @parameter_name[AS] [type_schema_name. ]parameter_data_type[NULL] [ = default ] [READONLY] } [ , ...n ] ] )RETURNS@return_variableTABLE<table_type_definition>[WITH<function_option>[ , ...n ] ] [AS]BEGINfunction_bodyRETURN...
parameters can be specified. A function can have zero or more input parameters. There must be one entry in the list for each parameter that the function expects to receive. All the parameters for a function are input parameters and are nullable. For more information, seeDefining the parameters...
"Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form...
在创建Function 前,先Create TYPE {typename} table of …; 然后才能在 定义Function 中return TypeName(变量列表之后); Function 内部默认是只读的,也就是只能使用Select 或者 Select into ; 要使用Insert , Update , Delete 等DML语句,必须使用PRAGMA AUTONOMOUS_TRANSACTION 声明,且 commit 语句不能少哦; ...
Here is the code, if you’d like to try it in your local database (it should work withPostgreSQL9.3): 代码语言:javascript 代码运行次数:0 运行 AI代码解释 DROPTABLEIFEXISTSsales_table;CREATETEMPORARYTABLEsales_table(keyvarchar(6),customerIDvarchar(10),productIDvarchar(10),price float);INSERTIN...
By default, SQL Server cannot execute CLR code. You can create, modify, and drop database objects that reference common language runtime modules; however, you cannot execute these references in SQL Server until you enable theclr enabled option. To enable this option, usesp_configure. ...
/// d ##class(PHA.TEST.SQLFunction).ToDate1() ClassMethod ToDate1() { NEW SQLCODE &sql( SELECT TO_DATE('8','MM'), TO_DATE('2018','YYYY') INTO :a,:b ) if SQLCODE '= 0 { w !,"Error code ",SQLCODE } else { w "MM format: ",a," = ",$ZDATE(a,1,,4),! w "YYY...
If an object of the given name already exists in the specified database and schema context or the user has no permissions to create a function, an error is raised. IF NOT EXISTS If the optional IF NOT EXISTS is specified, then the statement creates the function if it does not already...
根据X/Open和SQL Access Group SQL CAE规范(1992)所进行的定义,SQLERROR返回SQLSTATE值。SQLSTATE值是包含五个字符的字符串,由2个字符的SQL错误类和3个字符的子类构成。五个字符包含数值或者大写字母, 代表各种错误或者警告条件的代码。成功的状态是由00000标识的。SQL