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1. ΪºÎʹÓÃÓα꣺
ʹÓÃÓαê(cursor)µÄÒ»¸öÖ÷ÒªµÄÔÒò¾ÍÊǰѼ¯ºÏ²Ù×÷ת»»³Éµ¥¸ö¼Ç¼´¦Àí·½Ê½¡£ÓÃSQLÓïÑÔ´ÓÊý¾Ý¿âÖмìË÷Êý¾Ýºó£¬½á¹û·ÅÔÚÄÚ´æµÄÒ»¿éÇøÓòÖУ¬ÇÒ½á¹û
ÍùÍùÊÇÒ»¸öº¬Óжà¸ö¼Ç¼µÄ¼¯ºÏ¡£Óαê»úÖÆÔÊÐíÓû§ÔÚSQL serverÄÚÖðÐеطÃÎÊÕâЩ¼Ç¼£¬°´ÕÕÓû§×Ô¼ºµÄÒâÔ¸À´ÏÔʾºÍ´¦ÀíÕâЩ¼Ç¼¡£
2. ÈçºÎʹÓÃÓα꣺
Ò»°ãµØ£¬Ê¹ÓÃÓα궼×ñÑÏÂÁеij£¹æ²½Ö裺
(1) ÉùÃ÷Óαꡣ°ÑÓαêÓëT-SQLÓï¾äµÄ½á¹û¼¯ÁªÏµÆðÀ´¡£
(2) ´ò¿ªÓαꡣ
(3) ʹÓÃÓαê²Ù×÷Êý¾Ý¡£
(4) ¹Ø±ÕÓαꡣ
2.1. ÉùÃ÷Óαê
DECLARE CURSORÓï¾äSQL-92±ê×¼Óï·¨¸ñʽ£º
DECLARE ÓαêÃû [ INSENSITIVE ] [ SCROLL ] CURSOR
FOR sql-statement
Eg:
Declare MycrsrVar Cursor
FOR Select * from tbMyData
2.2 ´ò¿ªÓαê
OPEN MycrsrVar
µ±Óα걻´ò¿ªÊ±£¬ÐÐÖ¸Õ뽫ָÏò¸ÃÓα꼯µÚ1ÐÐ֮ǰ£¬Èç¹ûÒª¶ÁÈ¡Óα꼯ÖеĵÚ1ÐÐÊý¾Ý£¬±ØÐëÒÆ¶¯ÐÐÖ¸ÕëʹÆäÖ¸ÏòµÚ1ÐС£¾Í±¾Àý¶øÑÔ£¬¿ÉÒÔʹÓÃÏÂÁвÙ×÷¶ÁÈ¡µÚ1ÐÐÊý¾Ý£º
FETCH FIRST from E1cursor
»ò FETCH NEXT from E1cursor
2.3 ʹÓÃÓαê²Ù×÷Êý¾Ý
ÏÂÃæµÄʾÀýÓÃ@@FETCH_STATUS¿ØÖÆÔÚÒ»¸öWHILEÑ»·ÖеÄÓαê»î¶¯
/* ʹÓÃÓαê¶ÁÈ¡Êý¾ÝµÄ²Ù×÷ÈçÏ¡£*/
DECLARE E1cursor cursor /* ÉùÃ÷Óα꣬ĬÈÏΪFORWARD_ONLYÓαê */
FOR SELECT * from c_example
OPEN E1cursor /* ´ò¿ªÓαê */
FETCH NEXT from E1cursor /* ¶ÁÈ¡µÚ1ÐÐÊý¾Ý*/
WHILE @@FETCH_STATUS = 0 /* ÓÃWHILEÑ»·¿ØÖÆÓαê»î¶¯ */
BEGIN
FETCH NEXT from E1cursor /* ÔÚÑ»·ÌåÄÚ½«¶ÁÈ¡ÆäÓàÐÐÊý¾Ý */
END
CLOSE E1cursor /* ¹Ø±ÕÓαê */
DEALLOCATE E1cursor &
Ïà¹ØÎĵµ£º
if exists (select * from dbo.sysobjects where name='SplitStr' )
drop FUNCTION SplitStr
go
CREATE FUNCTION SplitStr (@splitString varchar(8000), @separate varchar(10))
RETURNS @returnTable ......
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BULK INSERT
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package cn.ctgu.edu.ac;
import java.sql.*;
public class test {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String url="jdbc:sqlserver://localhost:1433;Database=ÍøÉÏÊéµê¹ÜÀíϵͳ;integr ......
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