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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
3 months ago
I thought UPDATE was for modifying existing records, not adding new ones!
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Wilbert
3 months ago
C looks wrong to me, should be A for sure.
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Vi
3 months ago
Wait, can you really use UNION like that? Seems off.
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Fletcher
4 months ago
Totally agree, A is the way to go!
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Regenia
4 months ago
A is the correct choice for appending records.
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Alyssa
4 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
4 months ago
I’m pretty certain that "UPDATE" commands are for modifying existing records, not appending new ones.
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Emogene
4 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
5 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
5 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
5 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
5 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
5 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
5 months ago
This looks like a straightforward SQL question. I'm pretty confident I can solve this one.
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Carey
5 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
5 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
10 months 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
9 months ago
C) INSERT VALUES ( 'a1' , 6, 9.4) INTO my_table
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Graciela
9 months ago
B) my_table UNION VALUES ('a1', 6, 9.4)
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Adela
9 months ago
A) INSERT INTO my_table VALUES ('a1', 6, 9.4)
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Kenneth
10 months 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
10 months 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
8 months ago
User4: A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the way to go then.
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Reita
8 months ago
User3: Definitely, the other options don't look like valid SQL commands for appending a new record.
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Lili
9 months ago
User2: I agree, that option seems to be the right choice.
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Pearly
10 months ago
User1: I think A) INSERT INTO my_table VALUES ('a1', 6, 9.4) is the correct SQL command.
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Ligia
10 months 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
11 months 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
11 months ago
I agree with Miles, because INSERT INTO is used to add new records to a table.
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Miles
11 months ago
I think the correct answer is A) INSERT INTO my_table VALUES ('a1', 6, 9.4)
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