When Oracle Database executes a SQL statement, it stores the result set and processing information in an unnamedprivate SQL area. A pointer to this unnamed area, called acursor, lets youretrieve the rows of the result set one at a time.Cursor attributesreturn information about the state of t...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric 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. DECLARE CURSOR accep...
Oracle PL/SQL - Cursor variables' attributesHOME Oracle PL/SQL PL SQL Cursor Cursor Variables Introduction There are four variables: Name Description %FOUND checks whether a fetch succeeded in bringing a record into a variable. Returns TRUE if the fetch succeeded, FALSE otherwise. %NOTFOUND ...
E PL/SQL Predefined Data Types Index An implicit cursor has attributes that return information about the most recently runSELECTor DML statement that is not associated with a named cursor. Note: You can use cursor attributes only in procedural statements, not in SQL statements. ...
Applies to: SQL ServerReports the attributes of server cursors currently open for the connection.Transact-SQL syntax conventionsSyntaxKopiraj sp_cursor_list [ @cursor_return = ] cursor_variable_name OUTPUT , [ @cursor_scope = ] cursor_scope [;] ...
dbnamesysname,nullableName of the database that the table resides in.NULLwhenOPENQUERYorOPENROWSETare used. Remarks sp_describe_cursor_tablesdescribes the base tables referenced by a server cursor. For a description of the attributes of the result set returned by the cursor, usesp_d...
A cursor has four attributes which you can reference in the following format: cursor_name%attributeCode language:PostgreSQL SQL dialect and PL/pgSQL(pgsql) wherecursor_nameis the name of the explicit cursor. 1) %ISOPEN This attribute isTRUEif the cursor is open orFALSEif it is not. ...
from sqlalchemy.orm import sessionmaker Session=sessionmaker(bind=engine)#创建完session就可以添加数据了ed_user=User('ed','Ed jone','edpasswd')session.add(ed_user)#也可以使用session.add_all()添加多个对象#session.add_all([user1,user2,user3])printed_user in session# Truesession.rollback()pr...
In this article Syntax Arguments Remarks Permissions Show 2 more DECLARE CURSOR (Transact-SQL) 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. DECLARE CURSOR accepts both a syntax bas...
Attributes SerializableAttribute Constructors 展开表 CursorDefinition() Fields 展开表 Uninitialized Constant to indicate and uninitialized token. (Inherited from TSqlFragment) Properties 展开表 FirstTokenIndex Gets or sets the first index of the token. (Inherited from...