--UPDATE MemberAccount SET UserName = UserName + 'A' WHERE CURRENT OF My_Cursor; --更新 --DELETE FROM MemberAccount WHERE CURRENT OF My_Cursor; --删除 FETCH NEXT FROM Du_Cursor into @linkmanno,@str; --读取下一行数据 END CLOSE Du_Cursor; --关闭游标 DEALLOCATE Du_Cursor; --释放...
SQL Server provides the@@FETCHSTATUSfunction that returns the status of the last cursorFETCHstatement executed against the cursor;If@@FETCHSTATUSreturns 0, meaning theFETCHstatement was successful. You can use theWHILEstatement to fetch all rows from the cursor as shown in the following code: WHIL...
Cursor implementations Type of cursors Request a cursor Visa 2 fler Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Operations in a relational database act on a complete set of rows. For example, the set of rows returned by aSELECTstatement consists of all the rows that...
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 accepts both a ...
Use this keyword when you use cursor variables as parameters. If value is defined as OUTPUT of a module executed against a linked server, any changes to the corresponding @parameter performed by the OLE DB provider are copied back to the variable at the end of the execution of module. If ...
Request a cursor Prikaži još 2 Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Operations in a relational database act on a complete set of rows. For example, the set of rows returned by aSELECTstatement consists of all the rows that satisfy the conditions in the...
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.
# Python 封装 SQL Server 功能添加的请求importpyodbc connection=pyodbc.connect("Driver={ODBC Driver 17 for SQL Server};Server=server_name;Database=master;UID=user;PWD=password;")cursor=connection.cursor()cursor.execute('EXEC sys.sp_addsrvrolemember @login = N''new_user'', @rolename = N''sys...
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.
server cursor // to avoid OutOfMemoryError when the SELECT statement produces very large // results. // Create and execute a SQL statement that returns some data. String SQL = "SELECT Title, DocumentSummary FROM Production.Document"; // Display the response buffering mode. SQLServerStatement ...