Can we save and drop another table who don't have today's date in their name in SQL

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Hi Coders I have 3 table in which I want to store only one and delete other like below:

SQL

X
X_20172606
X_20172706

one and name x other has date with it so what I want is I want to delete it previous date table and store only todays date table. How can I achieve this

What I have tried:

Create 3 tables like below
X
X_20172606
X_20172706

Posted 27-Jun-17 0:15am

amitesh1989

Updated 27-Jun-17 0:36am

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Richard Deeming 27-Jun-17 13:51pm

That sounds like an extremely bad database design!

You should have a single table (X), with a column to indicate the record date. That way, you're not scrabbling around trying to find which table the record is stored in.

Database Normalization Explained in Simple English[^]

amitesh1989 28-Jun-17 0:22am

its just an example to give everyone a hint what actually I am looking for

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W∴ Balboos, *GHB* · Answer 1 · 2017-06-27T00:36:00

SQL has a number of date-formats available.

Getting Previous Day:
You can uses DATEADD() with GETDATE(), using negative values for amount of days you wish to "Add".

Getting Date Parts:
Use YEAR(), MONTH() and DAY() on the new date value and build your string. Don't forget to CAST() them as strings. and use them to build your string for the table name, along with whatever 'X' is, and as long as your at it, make the entire DROP TABLE statement at the same time.

EXEC() the string.

Now - you can, after adjusting the date for the previous date also use some of the date formatting options via, for example, CONVERT().

Notice I didn't spell-it-all out for you. I'd like you to learn how to do the work of looking up how to format the function arguments - which, while you're looking at them, will teach you other things as well which, no doubt, will be useful another day.