SQLRETURN SQLGetInfo( SQLHDBC ConnectionHandle, SQLUSMALLINT InfoType, SQLPOINTER InfoValuePtr, SQLSMALLINT BufferLength, SQLSMALLINT * StringLengthPtr); 参数 ConnectionHandle [输入] 连接句柄。 InfoType [输入]信息类型。 InfoValuePtr [输出]指向要在其中返回信息的缓冲区的指针。 根据所请求的 InfoT...
如果 *InfoValuePtr 是Unicode 字串串(呼叫 SQLGetInfoW 時), BufferLength 自變數必須是偶數;如果不是,則會傳回 SQLSTATE HY090 (無效字符串或緩衝區長度)。 StringLengthPtr [輸出]緩衝區的指標,用來傳回可用於 *InfoValuePtr 中傳回的位元組總數(不包括字元數據的 Null 終止字元)。 針對字元數據,如果...
mypy [mypy] [bug]调整了 mypy 插件,以适应在使用 SQLAlchemy 1.4 时可能进行的一些针对问题#236 sqlalchemy2-stubs 的更改。这些更改在 SQLAlchemy 2.0 内保持同步。这些更改还与旧版本的 sqlalchemy2-stubs 兼容。 [mypy] [bug]修复了 mypy 插件中的崩溃,该崩溃可能发生在 1.4 和 2.0 版本上,如果使用一个...
使用 CONCAT 函数：CONCAT 函数可以将多个字段拼接在一起。例如，将 FirstName、MiddleName 和 LastName...
The string can have a maximum of 255 characters. NAME = { backup_set_name | @backup_set_var } Specifies the name of the backup set. Names can have a maximum of 128 characters. If NAME is not specified, it is blank. { EXPIREDATE ='date' | RETAINDAYS = days } Specifies when the ...
SQL_CATALOG_NAME 3.0 A character string: "Y" if the server supports catalog names, or "N" if it does not.A SQL-92 Full level-conformant driver will always return "Y". SQL_CATALOG_NAME_SEPARATOR 1.0 A character string: the character or characters that the data source defines as the sep...
extract string between two characters/string, first character is 'Test Name:' and second character is line break i.e., or end of line. Extracting domain name from FQDN fully qualified domain name see example Extracting only year from getdate() function... Extracting substring between two cha...
CREATE FUNCTION dbo.ufn_FindReports (@InEmpID INT) RETURNS @retFindReports TABLE ( EmployeeID INT PRIMARY KEY NOT NULL, FirstName NVARCHAR(255) NOT NULL, LastName NVARCHAR(255) NOT NULL, JobTitle NVARCHAR(50) NOT NULL, RecursionLevel INT NOT NULL ) --Returns a result set that lists all...
CONVERT(TEXT, 437.324) returns the string "437.324" DateAdd, DateDiff, and DatePart functions These commonly used date functions are similar (DateAdd, DateDiff, and DatePart) in Access and TSQL, but the use of the first argument differs. ...
如果StringLengthPtr 指向的位置中的值大于 BufferLength 中指定的长度,则字符串输出信息将被截断为 BufferLength 字节,函数返回 SQL_SUCCESS_WITH_INFO。 用法 请参SQLGetInfo( 返回的信息, InfoType可能值列表,以及 SQLGetInfo() 函数针对该值返回的信息描述。 返回码 SQL_SUCCESS SQL_SUCCESS_WITH_INFO SQL_ERRO...