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Select the correct SQL statement that records the space occupied by deleted or updated rows for later reuse, and also updates statistics.
Suggested Answer: A
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42 comments · newest first
LA
Layla
11 months ago
I disagree, VACUUM alone is enough for stats.
LE
Leonardo
11 months ago
No way, it's definitely not EXPLAIN.
MY
Myra
12 months ago
Wait, does EXPLAIN really not do this? That's surprising!
EM
Emily
12 months ago
I thought it was just VACUUM, but I guess not.
GA
Gabriele
12 months ago
Definitely B, VACUUM ANALYZE is the one!
LA
Lavonda
1 year ago
I thought EXPLAIN was for query performance, so it can't be the answer, right?
FL
Florinda
1 year ago
I practiced a question like this, and I feel like VACUUM ANALYZE is the right choice because it does both tasks.
NO
Noemi
1 year ago
I'm not entirely sure, but I remember something about VACUUM being related to space management.
VA
Valentin
1 year ago
I think the answer might be VACUUM ANALYZE since it updates statistics and reclaims space.
CR
Crissy
1 year ago
I'm pretty confident I know the answer to this one. Salesforce Net Zero Cloud uses the Greenhouse Gas Protocol as its base accounting methodology.
JO
Joaquin
1 year ago
Hmm, this seems straightforward. I think option A is the way to go - clicking the field in the sidebar and confirming the pop-up should do the trick.
LE
Lettie
1 year ago
Wait, what's the difference between adding/removing a witness line and changing a witness line? I'm a bit confused on the nuances here.
FE
Felix
1 year ago
B) VACUUM ANALYZE - the one that cleans up and updates the stats. Perfect for keeping my database running smooth like a well-oiled machine!
KI
Kiley
1 year ago
User 3: Yes, VACUUM ANALYZE is the one that keeps the database running smoothly.
MA
Magda
1 year ago
User 2: I believe it's VACUUM ANALYZE, it not only cleans up but also updates the stats.
SE
Sean
1 year ago
User 1: I think the correct SQL statement is VACUUM.
ME
Melissa
1 year ago
NOTIFY? I'll just send a carrier pigeon to let the database know it's time for a cleanup.
DA
Daisy
1 year ago
EXPLAIN ANALYZE? I prefer to just 'explain' to my boss why the database is slow.
VE
Vesta
1 year ago
VACUUM is important for reclaiming space and maintaining database performance.
SO
Solange
1 year ago
I find it easier to just run EXPLAIN and explain the query plan to my team.
ST
Stefany
1 year ago
EXPLAIN ANALYZE provides detailed execution information, it's useful for performance tuning.
VE
Verda
1 year ago
I usually run VACUUM ANALYZE to optimize the database performance.
TI
Timmy
1 year ago
E) NOTIFY
WE
Weldon
1 year ago
D) EXPLAIN ANALYZE
TA
Tamekia
1 year ago
C) EXPLAIN
MA
Marcos
1 year ago
B) VACUUM ANALYZE
RO
Rozella
1 year ago
A) VACUUM
LO
Lorriane
1 year ago
I think VACUUM ANALYZE is the best option for maintaining database performance.
AL
Alfred
1 year ago
I always use VACUUM ANALYZE to make sure my database is running efficiently.
ST
Stevie
1 year ago
VACUUM ANALYZE is the correct statement to use for optimizing the database.
SA
Sage
1 year ago
D) EXPLAIN ANALYZE
MI
Micah
1 year ago
C) EXPLAIN
OT
Otis
1 year ago
B) VACUUM ANALYZE
BE
Bettye
1 year ago
A) VACUUM
MI
Mignon
1 year ago
VACUUM ANALYZE? Gotta keep that database in tip-top shape, am I right?
LE
Lemuel
1 year ago
VACUUM? Sounds like I'm cleaning my room, not my database!
WI
Winfred
1 year ago
E) NOTIFY
CA
Cassandra
1 year ago
B) VACUUM ANALYZE
FR
Frankie
1 year ago
A) VACUUM
LI
Lilli
2 years ago
I'm not sure, but I think it might be B) VACUUM ANALYZE because it also updates statistics.
LY
Lynsey
2 years ago
I agree with Thomasena, VACUUM is used to reclaim space and update statistics.
TH
Thomasena
2 years ago
I think the correct answer is A) VACUUM.