Summary: in this tutorial, you will learn how to use the PL/SQL cursor with parameters to fetch data based on parameters. An explicit cursor may accept a list of parameters. Each time you open the cursor, you can pass different arguments to the cursor, which results in different result ...
Open cursor with parameter : Cursor Parameter « Cursor « Oracle PL/SQL TutorialOracle PL/SQL Tutorial Cursor Cursor ParameterSQL> SQL> SQL> create table employee ( 2 id number, 3 employee_type_id number, 4 external_id varchar2(30), 5 first_name varchar2(30), 6 middle_name varchar...
I know this dynamic query would be inefficient as each query would be unique which means hard parsed which means low efficiency. Actually my search screen has a lot of fields about 50 different fields. (1)Since p_empno etc are parameters to stored proc are these turned into bind varaibles ...
(1)If CURSOR_SPACE_FOR_TIMEis set to false (the default), then a cursor can be deallocated from the library cache regardless ofwhether application cursors associated with its SQL statement are open.In this case, Oracle Database must verify that the cursor containing the SQLstatement is in th...
If the key already appears in the database and duplicates are not supported, the data associated with the key will be replaced. Parameters: key - the key used as input.. data - the data used as input. Returns: OperationStatus.SUCCESS. Throws: OperationFailureException - if one of the ...
CommandType.StoredProcedure cmd.Parameters.Add(NewOracleParameter("N_EMPNO", OracleType.Number)).Value =7369cmd.Parameters.Add(NewOracleParameter("IO_CURSOR", OracleType.Cursor)).Direction = ParameterDirection.Output rdr = cmd.ExecuteReader()While(rdr.Read())REMdosomethingwiththe valuesEndWhi...
With a CursorSpecification, an application can specify whether Oracle OLAP calculates the extent of a Cursor or the starting and ending positions of the current value of a child Cursor in the parent Cursor. If a CursorSpecification specifies those calculations, then the application can retrieve ...
CURSOR cur IS是定义一个游标,然后把游标里定义的查询语句存储到游标里 因为查询语句查出来的数据往往是几条记录 但是你用的时候缺只能一条一条取出来用 这时游标的好处就体现出来了 游标存储时 存的是几条记录 但是读取时 他是一条记录一条记录读取的 然后再使用FOR IN循环一下 就可以将你存储在...
Only allows statements with identical text to share the same cursor. --只有SQL 语句完全相同的情况下,才会使用相同的cursor,即执行计划。 Notes: (1)If you set CURSOR_SHARING, then Oracle recommends the FORCE setting unless you are in a DSS environment. FORCE limits the growth of child cursors ...
Filling a DataSet Using One or More REF CURSORsThis example executes a PL/SQL stored procedure that returns two REF CURSOR parameters, and fills aDataSetwith the rows that are returned. To use these examples, you may need to create the Oracle tables, and you must create a PL/SQL package ...