sql declare cursor

In general, there are not many chances to use fetch in batches, but we 'd better get familiar with this feature provided by Oracle, and maybe it will be used at any time. CopyCodeThe Code is as follows: declareCursor C1 is select * From t_depart;V_depart t_depart % rowtype;Type v_code_type is table of t_0000.depart_code % type;V_code v_code_type;Type v_name_type is table of t_0000.depart_name % type;V_name v_name_type;BeginOpen C1;Fetch C1 bulk collect into v_code, v_name;For I in 1 .. v_cod

Encountered error: A cursor with thename ' already exists, want to see what code is causing. Find the following methods. --Test declaration cursor and open DECLARE vend_cursor cursor for SELECT * Frompurchasing.vendor open Vend_cursor FETCH Nextfromvend_cursor; --You can SELECT ec.session_id,ec.name,ec.propert

When using SQLServer, paging processing has always been a tough issue. When using SQL Server, paging processing has always been a tough issue. Under normal circumstances, the SQL Server will create an appropriate index for a frequently used TableThis will greatly improve the data retrieval speed of the database itself, and the indexing method will not be detailed.If you need to return a large amount of d

The following uses the MERs table in the northwind database in SQL Server 2000 as an example, UseCursor + WHILE LOOPTo traverse the companyName column in the MERs table. Declare @ customer nvarchar (50) Declare pcurr cursorSelect distinct companyName from MERs Open pcurrFetch next from pcurr into @ customer While (@ fetch_status = 0)Begin Print (@ customer)Fetch

entries for the client to display by PAGEBased on the above ideas, compile the following general paging stored procedures:Copy codeThe Code is as follows:[Code]-- // ==================================-- // SQL Server General paging Stored Procedure-- // Author: netwild-- // Date: 2010/07/22-- // Email: netwild@163.com-- // QQ: 52100641)-- // ==================================SET QUOTED_IDENTIFIER ONGOSET ANSI_NULLS ONGOCreate proc execByPage@ SqlQuer

Alter Function [ DBO ] . [ Sumstring ] ( @ Userid Nvarchar ( 40 ), @ Selectname Nvarchar ( 4000 )) Returns Nvarchar ( 4000 ) As Begin Declare @ Str Nvarchar ( 4000 ) Declare @ Productname Nvarchar (4000 ) Set @ Str = '' Declare Pcurr Cursor For Select ' " ' + @ Sele

The primary key of the table must be the ID column. [ID] int identity) 1. Stored ProcedureSelect top page size *From testtableWhere (id not in(Select top page size * Page IDFrom tableOrder by ID ))Order by ID 2. cursor Stored ProcedureCreate procedure sqlpager@ Sqlstr nvarchar (4000), -- query string@ Currentpage int, -- page n@ Pagesize int -- number of lines per pageAsSet nocount onDeclare @ P1 int, -- P1 is the

Tags: rom parameter webapi Add this out method dap OraRequirements: WEBAPI server, access to data through the Oracle database's stored procedures.To establish a stored procedure in PL/sql: (First and foremost, the entire table is detected)Create or Replace procedure is begin Open for ' SELECT * from wx_sp ' ; End;C # code: (This is the method called,Out_return , which corresponds to the cursor parameter i

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Declare @ user varchar (20 ); Declare pcurr cursor Select User From Table1 where group_code = @ group_code; Open pcurr Fetch next from pcurr into @ user While (@ fetch_status = 0) Begin Select @ num = count (1) From Table2 where user_code = @ user and role_code = @ r

IF EXISTS(SELECT * fromsysobjectsWHEREName='Sp_contestsubmit') DROP PROCSp_contestsubmitGO-- =============================================--AUTHOR:ZQT--Create date:2011-11-25--Desc: The system administrator has handed out the test taker in bulk-contest-- =============================================Create procSp_contestsubmit@GroupID int --Assessment ID as--Declare a cursorDECLAREMyCursorCURSOR for SelectPk_userexamid,fk_userid

Set ANSI_NULLS ONSet QUOTED_IDENTIFIER ONGo /*-- Implement paging using SQL undisclosed stored proceduresThe method is simple and efficient. A known problem is that an empty record set needs to be returned.The solution is to use set recordset = recordset. nextrecordsetTo skip the first record set.This method is provided by J9988 and changed to a stored procedure for convenient calling.-- Producer build 2004.05 (reference please keep this information )

Label:Often write stored procedures, but today in the use of cursors or negligence of some things, the implementation of the process has not been carried out, and then directly linked to SQL Server, the lesson Ah! Although the code is simple, I hope to remember: Create PROCEDURE [dbo]. [TEMPHXB] As BEGIN declare @uidintDeclare mycursortemp Cursor for SelectUid fr

How to dynamically change table names in OraclePLSQL statements How to dynamically change table names in Oracle PL/SQL statements /* The younger brother just came into contact with the ORACLE stored procedure and asked me a question. The younger brother wrote a stored procedure to receive a parameter as the table name, then, you can query the content of one field of all records in the table and import it to another table. ( Tabname in varchar )

Declarecursor emp_cursor (PNO in number default 7369) is select * from EMP where empno = PNO; emp_row EMP % rowtype; begin open emp_cursor (7934); fetch emp_cursor into emp_row; values (emp_row.ename); close emp_cursor; end;/declarecursor emp_cursor (PNO in number default 7369) is select * from EMP where empno = PNO; begin for emp_row in emp_cursor (7934) loop completion (emp_row.ename); End loop; end;/declaretype emp_cname is ref cursor return EMP %

Example: Displays all employee names and their salaries for the EMP table: Copy Code code as follows: Declare Cursor Emp_cursor is select ename,sal from EMP; Begin For Emp_record in Emp_cursor loop Dbms_output.put_line (' Name: ' | | emp_record.ename| | ', wages: ' | | Emp_record.sal); End Loop; End; / Anonymous block completedName: SMITH, Salary: 880Name: ALLEN, Salary: 1600Name: W

Tags: SQL Server cursorUse DatabaseNameDeclare @tblname char (100)Declare @sql char (5000)Declare table_cursor cursor for select name from sysobjects where name like ' tb_card[_]% ' and nameand nameOpen Table_cursorFETCH NEXT from Table_cursor to @tblnameWhile @ @FETCH_STATU

Original: Common cursor looping usages in SQL Server stored proceduresWith cursors, and while you can traverse every record in your query and pass the required fields to variables for appropriate processingDECLARE @A1 VARCHAR(Ten),@A2 VARCHAR(Ten),@A3 INTDECLAREYoucurnameCURSOR for SELECTA1,a2,a3 fromYoutablenameOPENYoucurnameFetch Next fromYoucurname into @a1,@a2,@a3 while @ @fetch_status1 begin --the a

Server/* Access to User table information travel target SET NOCOUNT on DECLARE find_user_table CURSOR For SELECT [name],crdate from sysobjects WHERE type= ' U '/* Here only refer to the User Defined table * * Order BY [name] DECLARE @cName VARCHAR (128)/* Definition Storage table name change * DECLARE @crdate DATETIME

Declare @id int DECLARECursor_dataCURSOR for SELECTGeneralid fromArticleWHEREId> 7146 --here is the Access data source OPENCursor_dataFETCH fromCursor_data into @id while @ @FETCH_STATUS=0 BEGIN PRINT 'old table ID:'+ CONVERT(NVARCHAR( -),@id)--you can do something else after you get this ID.--Add action start --Add operation complete

We all know that in the operation of a large number of records, the performance of the cursor is really slow and heinous, but the cursor to a record of the ease of operation and can be put down, there is no ability to take into account the performance and convenience, the answer is yes, yesterday, just the project SQL statement optimization, An instance that has