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

A data engineer has been given a new record of data:id STRING = 'a1'rank INTEGER = 6rating FLOAT = 9.4Which of the following SQL commands can be used to append the new record to an existing Delta table my_table?
E) UPDATE VALUES ('a1', 6, 9.4) my_table
A) INSERT INTO my_table VALUES ('a1', 6, 9.4)
B) my_table UNION VALUES ('a1', 6, 9.4)
C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table
D) UPDATE my_table VALUES ('a1', 6, 9.4)

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

Actual exam question for Databricks's Databricks Certified Data Engineer Associate exam
Question #: 27
Topic #: 4
[All Databricks Certified Data Engineer Associate Questions]

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?

Show Suggested Answer Hide Answer
Suggested Answer: E

One of the benefits of the Databricks Lakehouse Platform embracing open source technologies is that it avoids vendor lock-in. This means that customers can use the same open source tools and frameworks across different cloud providers, and migrate their data and workloads without being tied to a specific vendor. The Databricks Lakehouse Platform is built on open source projects such as Apache Spark, Delta Lake, MLflow, and Redash, which are widely used and trusted by millions of developers. By supporting these open source technologies, the Databricks Lakehouse Platform enables customers to leverage the innovation and community of the open source ecosystem, and avoid the risk of being locked into proprietary or closed solutions. The other options are either not related to open source technologies (A, B, C, D), or not benefits of the Databricks Lakehouse Platform (A, B).Reference:Databricks Documentation - Built on open source,Databricks Documentation - What is the Lakehouse Platform?,Databricks Blog - Introducing the Databricks Lakehouse Platform.


by Eladia at May 31, 2024, 02:21 AM

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Aracelis
9 months ago
I thought UPDATE was for modifying existing records, not adding new ones!
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Wilbert
9 months ago
C looks wrong to me, should be A for sure.
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Vi
9 months ago
Wait, can you really use UNION like that? Seems off.
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Fletcher
10 months ago
Totally agree, A is the way to go!
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Regenia
10 months ago
A is the correct choice for appending records.
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Alyssa
10 months ago
I vaguely recall that "UNION" is used for combining results from multiple queries, not for adding new records directly.
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Aliza
10 months ago
I’m pretty certain that "UPDATE" commands are for modifying existing records, not appending new ones.
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Emogene
10 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.
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Marsha
11 months ago
I remember practicing SQL commands for appending data, but I'm not sure if "INSERT INTO" is the only way to do it.
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Pete
11 months 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.
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Stephen
11 months 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.
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Nichelle
11 months 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.
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Jose
11 months 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.
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Adell
11 months ago
This looks like a straightforward SQL question. I'm pretty confident I can solve this one.
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Carey
11 months 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.
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Staci
11 months ago
This looks like a classic event tree analysis question. I'm pretty confident I can tackle this one.
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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.
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Norah
1 year ago
C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table
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Graciela
1 year ago
B) my_table UNION VALUES ('a1', 6, 9.4)
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Adela
1 year ago
A) INSERT INTO my_table VALUES ('a1', 6, 9.4)
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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?
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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.
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Royal
1 year ago
User4: A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the way to go then.
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Reita
1 year ago
User3: Definitely, the other options don't look like valid SQL commands for appending a new record.
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Lili
1 year ago
User2: I agree, that option seems to be the right choice.
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Pearly
1 year ago
User1: I think A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the correct SQL command.
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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.
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Shonda
1 year ago
I'm not sure, but I think option C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table is also a possibility.
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Earnestine
1 year ago
I agree with Miles, because INSERT INTO is used to add new records to a table.
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Miles
1 year ago
I think the correct answer is A) INSERT INTO my_table VALUES ('a1', 6, 9.4)
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