ref cursor

3.1 basic oracle Stored Procedure syntax3.1.1 Basic StructureCREATE OR REPLACE PROCEDURE(Parameter 1 in number,Parameter 2 IN NUMBER) ISVariable 1 INTEGER: = 0;Variable 2 DATE;BEGINEND stored procedure name 3.1.2 SELECT INTO STATEMENTSave the select

What does cursor mean? Cursor   I. classification: Static cursor Explicit cursor (need to be clearly defined) Implicit cursor (all dml statements are implicit cursors, and for loop is also implicit cursors) Ref cursor (try not to use ref cursor. ref

Unlike SQL Server, Oracle uses Select to return the result set in the stored procedure, but returns the result set through Out parameters. It is actually using REF CURSOR Copy codeThe Code is as follows: -- procedure returns the record set: ---------

For the default installation of the HR architecture, the console output shows the fields (separated by semicolons) for each record in the two records of the employee 101: 101;9/21/1989 12:00:00 am;10/27/1993 12:00:00 AM; ac_account;110; 101;10/28/199

Abstract OLE DB is an open specification built on the success of ODBC, which provides an open standard for accessing and manipulating different types of data. ADO is a consumer of old db that provides access to OLE DB data sources at the application

Classification of dynamic cursors:A strong type: With a return statement, you can only open query statements with the same query result as the Ruturn type.Two weak types: no Rerurn statements. Can be opened for any query statement.--Steps to use

Oracle Stored Procedure return result set * Process return record set: Create or replace package pkg_test As Type myrctype is ref cursor; Procedure get (p_id number, p_rc out myrctype ); End pkg_test; / Create or replace package body

When executing a stored procedure that returns a ref cursor parameter, the Microsoft Oracle provider requires that the ref cursor be bound as an OracleParameter object of type OracleDbType. Cursor. The DataDirect provider for Oracle does not require

PL/SQL provides six types of cursor attributes: Cursor property Name Description Example % Found True is returned if the record is obtained successfully. Otherwise, false is returned. BeginUpdate t set name = 'F'

How Oracle can update newly inserted data with trigger implementation Collection1, establish the test tableCREATE TABLE TEST_TB(ID number,WLID number,PM VARCHAR2 (100),Djzt VARCHAR2 (10),SL number,PH VARCHAR2 (100));2. Set up the package and the

Procedure returns the recordset: CREATE OR REPLACE PACKAGE pkg_test As TYPE Myrctype is REF CURSOR; PROCEDURE Get (p_id number, p_rc out myrctype); End Pkg_test; / CREATE OR REPLACE PACKAGE body pkg_test As PROCEDURE Get (p_id number, p_rc out

For the default installation of the HR architecture, the console output shows the fields (separated by semicolons) for each record in the two records of the employee 101: 101;9/21/1989 12:00:00 am;10/27/1993 12:00:00 AM; ac_account;110; 101;10/28/1

Instead of using a select in a stored procedure like SQL Server, Oracle can return a result set, which is returned by a result set of an out type parameter. is actually using ref CURSOR Copy Code code as follows: --procedure returns the

The cursor is performed as follows:Parse resolutionBind bindOpen opensExecute ExecuteFetch callbackClose off 1. Write your own first cursor pl/sqlDeclareCursor c_s is select * from User_tables;BeginOpen c_s; --Open cursorClose c_s;--Closing

Unlike SQL Server, Oracle uses Select to return the result set in the stored procedure, but returns the result set through Out parameters. It is actually using REF CURSORCopy codeThe Code is as follows:-- Procedure:-------------------- Declare a

Principles and usage of oracle packagesPackagePackage definition: A package is an encapsulation package for objects such as related procedures, functions, variables, cursors, and exceptions. It consists of two parts: specification and

PL/SQL Block Declare begin -- SQL statement -- SQL statement directly written (DML/TCL) -- Indirectly write execute immediate -- Select statement the into clause must be included. Select empno into eno from emp Where e-mapreduce = 7369; only one

Cursor and dynamic SQL, cursor dynamic SQL Cursor type: Static cursor (the cursor is statically bound to a select statement during compilation. This cursor can only act on one query statement) and dynamic cursors (that is, we want our query

A stored procedureFirst, we set up a simple table for the test of stored procedures The code is as follows Copy Code CreateTableXuesheng (ID integer, xing_ming varchar2 (), Yu_wen number, shu_xue number);Insertinto

ado| tricks ADO. NET provides a unified programming pattern and a set of common classes for any type of data access, regardless of the language in which you develop your code. Ado. NET is brand new, but as consistent as possible with ADO, it