returnTypes.ROW(Types.STRING(),Types.STRING()); } } 在MyUDTF中继承了TableFunction<T>, 所有的自定义表函数都必须继承该抽象类,其中T表示返回的数据类型,通常如果是原子类型则直接指定例如String, 如果是复合类型通常会选择Row, FlinkSQL 通过类型提取可以自动识别返回的类型,如果识别不了需要重载其getResultType...
The nonscalar types, cursor and table, can't be specified as a parameter data type in either Transact-SQL or CLR functions. If type_schema_name isn't specified, the Database Engine looks for the scalar_parameter_data_type in the following order: The schema that contains the names of SQL...
SQL String Functions > CAST Function The CAST function in SQL converts data from one data type to another. For example, we can use the CAST function to convert numeric data into character string data. SyntaxThe syntax of the CAST function is as follows: ...
ROW(Types.STRING(),Types.STRING()); } } 在MyUDTF中继承了TableFunction<T>, 所有的自定义表函数都必须继承该抽象类,其中T表示返回的数据类型,通常如果是原子类型则直接指定例如String, 如果是复合类型通常会选择Row, FlinkSQL 通过类型提取可以自动识别返回的类型,如果识别不了需要重载其getResultType方法,指定...
PLSQL子程序体; 三、简单例子:计算两个数字的和 3.1、函数定义 CREATEORREPLACEFUNCTIONadd_numbers(d1innumber, d2innumber)-- 函数声明,包括名称、参数名称及类型 returnnumber-- 返回值类型声明 as-- 或者写作is,均可 begin-- begin与end中间为pl sql 代码块,可执行查询、插入、更新、删除操作 ...
[Output] Pointer to a buffer in which to return the SQL data type of the parameter. This value is read from the SQL_DESC_CONCISE_TYPE record field of the IPD. This will be one of the values in theSQL Data Typessection of Appendix D: Data Types, or a driver-specific SQL data type...
For more information, see Converting Data from SQL to C Data Types in Appendix D: Data Types. 22007 Invalid datetime format A character column in the result set was bound to a date, time, or timestamp C structure, and a value in the column was, respectively, an invalid date, time, or...
For more information, see C Data Types in ODBC. SQL_DRIVER_VER 1.0 A character string with the version of the driver and optionally, a description of the driver. At a minimum, the version is of the form ##.##.###, where the first two digits are the major version, the next two ...
The conversion types available in your system vary according to the setup of your ERP system. In general, these are either M or EURX. Contact your system administrator for the details of your specific table configuration. LOOKUP: The type of lookup to be performed. ...
For SQL naming, the function will be created in the schema specified by the implicit or explicit qualifier. For system naming, the function will be created in the schema that is specified by the qualifier. If no qualifier is specified: ...