sql - Whats the difference between an in-memory table, temp table and a pivot table? -

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Regarding the SQL and queries, what is the difference between in-memory table, floating table and a pivot table?

  • A table of contents is a table that automatically It will no longer be required when it is no longer required, usually the creation of the session has ended. In MS SQL, they start with a # (or two hashes) if they are global logical tables, which are shared between multiple sessions. ), And is usually created with a selection in the #TEMPTABLE ... style query.

  • A pivot table is a special type of question where the values ​​of multiple rows Is summarized, one The "axis" and the column on the Q becomes where the summary data becomes rows again, often it happens where you have the dates that are ordered; they can then be "pivoted" so that you have a column for January, February For one, one for march, etc.


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