QUESTION 18 The TCL commands are used by the business end users of a database sy

Question

QUESTION 18 The TCL commands are used by the business end users of a database system O True O False QUESTION 19 What is a checkpoint none of these answens OA checkpoint is a part of a recovery log When a checkpoint is createdall uaorded in the recovery log-and as a resuit any updates to data stored in memory-are witten to the database in the data file on the disk O a part of.rec-yleg.wewn a checkpont is ereated, ne updates recorded inthe recovery log-and as a reut any updates to dea stored n memory-r, Acheckpoint database in the data fle on the disk men tote Aniwer: Acheape esa t of recovery log w en?c eckport soe ted a" updates ecer edinme ecovery i t an as ne any updates to data nce tredinnener to the database in the data fie on the disk tem QUESTION 20 At a basic level analytics nefers to analysis and interpretation of ata colecting data conducting a needs analy

Explanation / Answer

18) false

tcl commands are used for managing the transactions in database i.e they are used to manage the changes made by dml statements

tcl commands include commit, rollback, savepoint

19)

option 2 is correct

checpoint is a process which writes all modifies pages to pyhsical disk from buffer

20)

option 4

conducting a needs analysis

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