Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...
I have a table that has 2 fields, postDate, and postTime.<BR><BR>I want to select all the the records where<BR><BR>1. the current date is later than the post date.<BR>2. The post time is later than ...
clauses IN and EXISTS are interchangeable. However, they’re quite different in how they handle NULL values and may give different results. The problem comes from the fact that, in an Oracle database, ...
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