Discuss Databricks Databricks Certified Data Engineer Associate Exam Topic 4 Question 27

A data engineer has been given a new record of data:

id STRING = 'a1'

rank INTEGER = 6

rating FLOAT = 9.4

Which of the following SQL commands can be used to append the new record to an existing Delta table my_table?

AINSERT INTO my_table VALUES ('a1', 6, 9.4)

Bmy_table UNION VALUES ('a1', 6, 9.4)

CINSERT VALUES ( 'a1' , 6, 9.4) INTO my_table

DUPDATE my_table VALUES ('a1', 6, 9.4)

EUPDATE VALUES ('a1', 6, 9.4) my_table

Suggested Answer: E

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30 comments · newest first

Aracelis 10 months ago

I thought UPDATE was for modifying existing records, not adding new ones!

Wilbert 11 months ago

C looks wrong to me, should be A for sure.

Vi 11 months ago

Wait, can you really use UNION like that? Seems off.

Fletcher 11 months ago

Totally agree, A is the way to go!

Regenia 11 months ago

A is the correct choice for appending records.

Alyssa 12 months ago

I vaguely recall that "UNION" is used for combining results from multiple queries, not for adding new records directly.

Aliza 12 months ago

I’m pretty certain that "UPDATE" commands are for modifying existing records, not appending new ones.

Emogene 12 months ago

I think "INSERT INTO my_table VALUES" sounds right, but I feel like I might have seen a different syntax in some practice questions.

Marsha 1 year ago

I remember practicing SQL commands for appending data, but I'm not sure if "INSERT INTO" is the only way to do it.

Pete 1 year ago

The INSERT INTO command looks like the right approach here. I'll double-check the syntax, but I think that's the way to go.

Stephen 1 year ago

I'm a bit confused by the different options here. I'll need to review my SQL syntax to make sure I understand the differences between these commands.

Nichelle 1 year ago

Okay, let me break this down step-by-step. I think the key is to use the INSERT INTO command to append the new record to the existing table.

Jose 1 year ago

Hmm, I'm not sure about this one. I'll need to think through the different SQL commands and how they work with Delta tables.

Adell 1 year ago

This looks like a straightforward SQL question. I'm pretty confident I can solve this one.

Carey 1 year ago

Okay, let's see. The alert message indicates the virus has been detected, so the Alert log type is definitely one I should check.

Staci 1 year ago

This looks like a classic event tree analysis question. I'm pretty confident I can tackle this one.

Johanna 1 year ago

B and C look like they might be attempts to be clever, but they're not valid SQL. Sticking to the classic INSERT INTO is the way to go.

Norah 1 year ago

↳ replying to Johanna

C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table

Graciela 1 year ago

↳ replying to Johanna

B) my_table UNION VALUES ('a1', 6, 9.4)

Adela 1 year ago

↳ replying to Johanna

A) INSERT INTO my_table VALUES ('a1', 6, 9.4)

Kenneth 1 year ago

Haha, D and E are definitely not the right answers. Updating the entire table with a single record? What is this, SQL magic?

Lashaunda 1 year ago

I agree, A is the right choice. The other options don't seem to be valid SQL commands for appending a new record.

Royal 1 year ago

↳ replying to Lashaunda

User4: A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the way to go then.

Reita 1 year ago

↳ replying to Lashaunda

User3: Definitely, the other options don't look like valid SQL commands for appending a new record.

Lili 1 year ago

↳ replying to Lashaunda

User2: I agree, that option seems to be the right choice.

Pearly 1 year ago

↳ replying to Lashaunda

User1: I think A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the correct SQL command.

Ligia 1 year ago

The correct answer is A) INSERT INTO my_table VALUES ('a1', 6, 9.4). It's a straightforward INSERT statement to append a new record to the existing Delta table.

Shonda 2 years ago

I'm not sure, but I think option C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table is also a possibility.

Earnestine 2 years ago

I agree with Miles, because INSERT INTO is used to add new records to a table.

Miles 2 years ago

I think the correct answer is A) INSERT INTO my_table VALUES ('a1', 6, 9.4)

Databricks Certified Data Engineer Associate Exam - Topic 4 Question 27 Discussion