TEST E2E PROGRESS SQL

Kursinnehåll

TEST E2E PROGRESS SQL

TEST E2E PROGRESS SQL

1. TEST SECTION

FIRST CHAPTER SECOND CHAPTER THIRD CHAPTER

2. TEST SECTION 2

FIRST CHAPTER SECOND CHAPTER THIRD CHAPTER

THIRD CHAPTER

1. What columns are required when using the `UNION` clause in SQL?

2. How does the `UNION` clause treat duplicate rows by default?

What columns are required when using the UNION clause in SQL?

Select the correct answer

Columns must have unique names across all SELECT statements

Columns must have the same number and order in all SELECT statements

Columns must have different data types in each SELECT statement

How does the UNION clause treat duplicate rows by default?

Select the correct answer

It includes all duplicate rows

It randomly selects one instance of each duplicate row to include

It removes duplicate rows

Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 2. Kapitel 3

Fråga AI

Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal

Kursinnehåll

TEST E2E PROGRESS SQL

TEST E2E PROGRESS SQL

1. TEST SECTION

FIRST CHAPTER SECOND CHAPTER THIRD CHAPTER

2. TEST SECTION 2

FIRST CHAPTER SECOND CHAPTER THIRD CHAPTER

THIRD CHAPTER

1. What columns are required when using the `UNION` clause in SQL?

2. How does the `UNION` clause treat duplicate rows by default?

What columns are required when using the UNION clause in SQL?

Select the correct answer

Columns must have unique names across all SELECT statements

Columns must have the same number and order in all SELECT statements

Columns must have different data types in each SELECT statement

How does the UNION clause treat duplicate rows by default?

Select the correct answer

It includes all duplicate rows

It randomly selects one instance of each duplicate row to include

It removes duplicate rows

Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 2. Kapitel 3

Vi beklagar att något gick fel. Vad hände?

some-alt