同步是什么意思?谁主谁从?

授人以渔,不授人以鱼。
2015-12-08 18:24
2015-12-08 18:28
2015-12-08 20:43
2015-12-08 21:22
2015-12-08 21:24
程序代码:CREATE CURSOR icitem1 (item_no C(10), icitem C(20))
INSERT INTO icitem1 VALUES ("101", "101111")
INSERT INTO icitem1 VALUES ("201", "201222")
INSERT INTO icitem1 VALUES ("301", "301333")
CREATE CURSOR icitem2 (item_no C(10), icitem C(20))
INSERT INTO icitem2 VALUES ("101", "")
INSERT INTO icitem2 VALUES ("201", "")
INSERT INTO icitem2 VALUES ("301", "")
SELECT icitem1
INDEX on item_no TAG item_no
SELECT icitem2
SET RELATION TO item_no INTO "icitem1"
REPLACE icitem2.icitem WITH icitem1.icitem ALL
SET RELATION TO
SELECT icitem1
DELETE TAG item_no
SELECT icitem2
BROWSE
2015-12-08 21:44
2015-12-08 21:48
程序代码:USE icitem Alias icitem1 In 0
USE d:\bs\yf2\acc\Data\icitem Alias icitem2 In 0
CREATE CURSOR icitem1 (item_no C(10), icitem C(20))
INSERT INTO icitem1 VALUES ("101", "101111")
INSERT INTO icitem1 VALUES ("201", "201222")
INSERT INTO icitem1 VALUES ("301", "301333")
CREATE CURSOR icitem2 (item_no C(10), icitem C(20))
INSERT INTO icitem2 VALUES ("101", "")
INSERT INTO icitem2 VALUES ("201", "")
INSERT INTO icitem2 VALUES ("301", "")
SELECT icitem1
INDEX on item_no TAG item_no
SELECT icitem2
SET RELATION TO item_no INTO "icitem1"
REPLACE icitem2.icitem WITH icitem1.icitem ALL
SET RELATION TO
SELECT icitem1
Delete TAG item_no
SELECT icitem2
BROWSE
2015-12-08 21:54
2015-12-08 22:04
2015-12-08 22:11