This form of OPEN is used to open a cursor variable whose query was bound to it when it was declared. The cursor cannot be open already. A list of actual argument value expressions must appear if and only if the cursor was declared to take arguments. These values will be substituted in ...
postgresql [postgresql] [bug]添加了对 asyncpg 方言的支持,以在可用时返回cursor.rowcount值以用于 SELECT 语句。虽然这不是cursor.rowcount的典型用法,但是其他 PostgreSQL 方言通常提供此值。拉取请求由 Michael Gorven 提供。 参考文献:#9048 mysql [mysql] [usecase]添加了对 MySQL 索引反射的支持,以正确反映以...
This form of OPEN is used to open a cursor variable whose query was bound to it when it was declared. The cursor cannot be open already. A list of actual argument value expressions must appear if and only if the cursor was declared to take arguments. These values will be substituted in ...
A standard SELECT statement that defines the result set of the cursor. The keywords COMPUTE, COMPUTE BY, FOR BROWSE, and INTO aren't allowed within select_statement of a cursor declaration. Note You can use a query hint within a cursor declaration. However, if you also use the FOR UPDATE...
Declare Cursor: In this part, we declare variables and return a set of values. Open: This is the entering part of the cursor. Fetch: Used to retrieve the data row by row from a cursor. Close: This is an exit part of the cursor and is used to close a cursor. Deallocate: In this...
DeallocateCursorStatement DeclareCursorStatement DeclareTableVariableBody DeclareTableVariableStatement DeclareVariableElement DeclareVariableStatement DefaultConstraintDefinition DefaultLiteral DelayedDurabilityDatabaseOption DelayedDurabilityOptionKind DeleteMergeAction DeleteSpecification DeleteStatement DeleteUpdateAction DenySt...
CURSOR VARYING 使用預存程序修改資料 UPDATE 錯誤處理 TRY...CATCH 模糊化程序定義 WITH ENCRYPTION 強制程序重新編譯 WITH RECOMPILE 設定安全性內容 EXECUTE AS 基本語法 本節的範例使用所需的最少語法示範 CREATE PROCEDURE 陳述式的基本功能。 A. 建立 Transact-SQL 程序 下列範例會建立預存程式,從 AdventureWorks...
CURSOR, CURSOR_NAME, CYCLE, DATA, DATABASE, DATE, DATETIME_INTERVAL_CODE, DATETIME_INTERVAL_PRECISION, DAY, DEALLOCATE, DEC, DECADE, DECIMAL, DECLARE, DEFAULT, DEFAULTS, DEFERRABLE, DEFERRED, DEFINED, DEFINER, DEGREE, DELETE, DENSE_RANK, DEPTH, DEREF, DERIVED, DESC, DESCRIBE, DESCRIPTION, DESCR...
CURSOR MIN TRANSLATE DATE MINUTE TRANSLATION DAY MODULE TRIM DEALLOCATE MONTH TRUE DEC NAMES UNION DECIMAL NATIONAL UNIQUE DECLARE NATURAL 未知 DEFAULT NCHAR UPDATE DEFERRABLE NEXT UPPER DEFERRED NO USAGE DELETE NONE USER DESC NOT USING DESCRIBE NULL VALUE DESCRIPTOR NULLIF VALUES ...
Defines the attributes of a Transact-SQL server cursor, such as its scrolling behavior and the query used to build the result set on which the cursor operates.