-- ------------------------------------------- -- 批量更新同行数据 -- @author jis117 -- ------------------------------------------- SELECT LENGTH(t.image), SUBSTR(t.`image`, 1, LENGTH(t.image) - 3) FROM t_bt_movie_test t; SELECT LENGTH(t.image), CONCAT(SUBSTR(t.`image`, 1, LENGTH(t.image) - 4), 'W.jpg') FROM t_bt_movie_test t; UPDATE t_bt_movie_test t SET t.webImg = CONCAT(SUBSTR(t.`image`, 1, LENGTH(t.image) - 4), 'W.jpg'); SELECT t.image, t.webImg FROM t_bt_movie_test t; -- -------------------------------------------
测试批量更新同行数据
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转载自jis117.iteye.com/blog/2178637
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