01 2017 档案

摘要:Deployment method In Redshift 1, Deploy process: Drop and Refresh the view, Drop table, Create an empty table using the DDL 2, Build data: Insert the 阅读全文
posted @ 2017-01-09 20:37 大汪的数据之路 阅读(156) 评论(0) 推荐(0)
摘要:1, Full join issue: When use full join, the below join condition should not occur: 1, OR statement2, an obvious false or true condition, like 1 = 0 or 阅读全文
posted @ 2017-01-07 16:28 大汪的数据之路 阅读(4068) 评论(0) 推荐(0)