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DataBase Fundamentals new

DataBase Fundamentals new

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How can you insert the result of a SELECT query with a GROUP BY clause and an ORDER BY the sum in descending order into a new table in PostgreSQL?

INSERT INTO new_table

SELECT column1, column2, SUM(column3)

FROM original_table

GROUP BY column1, column2

ORDER BY column3 ASC;

INSERT INTO new_table

SELECT column1, column2, SUM(column3)

FROM original_table

GROUP BY column1, column2

ORDER BY column3 DESC;

INSERT INTO new_table (column1, column2, total)

SELECT column1, column2, SUM(column3) AS total

FROM original_table

GROUP BY column1, column2

ORDER BY total DESC;

INSERT INTO new_table

SELECT column1, column2, AVG(column3)

FROM original_table

GROUP BY column1, column2

ORDER BY column3 ASC;

INSERT INTO new_table (column1, column2, total)

SELECT column1, column2, SUM(column3)

FROM original_table

GROUP BY column1, column2

ORDER BY SUM(column3) DESC;

View this question

How to insert records into a table using a nested subquery and the ANY operator in PostgreSQL?

INSERT INTO table1 (col1, col2)

SELECT col1, col2

WHERE col3 = ANY (SELECT col3 FROM table3);

INSERT INTO table1 (col1, col2)

SELECT col1, col2

WHERE col3 IN (SELECT col3 FROM table3);

INSERT INTO table1 (col1, col2)

SELECT col1, col2

WHERE col3 NOT ANY (SELECT col3 FROM table3);

INSERT INTO table1 (col1, col2)

SELECT col1, col2

WHERE col3 = (SELECT col3 FROM table3);

View this question

What is the correct syntax to insert a query result into another table and sort the result by a specific column in descending order?

INSERT INTO new_table (column1, column2)

SELECT column1, column2

FROM original_table;

INSERT INTO new_table

FROM original_table

ORDER BY column3 DESC;

INSERT INTO new_table

FROM original_table

ORDER BY column3 DESC

INSERT INTO new_table (column1, column2, column3)

SELECT column1, column2, column3

FROM original_table

ORDER BY column3 DESC;

View this question

Which of the following is the correct syntax for inserting the result of a query into another table in PostgreSQL?

INSERT INTO table_2 (column_1, column_2, column_3)

SET column_1, column_2, column_3 =

SELECT column_1, column_2, column_3

WHERE condition;

INSERT INTO table_2 (column_1, column_2, column_3)

SELECT column_1, column_2, column_3

WHERE condition;

INSERT INTO table_2 (column_1, column_2, column_3)

INSERT SELECT column_1, column_2, column_3

WHERE condition;

INSERT INTO table_2 (column_1, column_2, column_3)

SELECT FROM table_1

WHERE condition;

View this question

What is the correct syntax to insert a NULL value in a PostgreSQL table?

INSERT INTO table_name (column1) VALUES ('NULL');

INSERT INTO table_name (column1) VALUES (NOT NULL);

INSERT INTO table_name (column1) VALUES (NULL);

INSERT INTO table_name (column1) VALUES ('NOT NULL');

View this question

What is the correct syntax to insert a new row into a table named users with columns id, name, email?

INSERT INTO users (id, name, email)

VALUES (1, 'John Doe', 'john.doe@example.com');

INSERT INTO table users (id, name, email)

VALUES (1, 'John Doe', 'john.doe@example.com');

INSERT INTO (id, name, email)

VALUES (1, 'John Doe', 'john.doe@example.com');

INSERT INTO users

SET id=1, name='John Doe', email='john.doe@example.com';

View this question

Which data type would you use to store whole numbers in SQL?

View this question

What is the purpose of the UNIQUE constraint in SQL?

To specify the data type of a column

To set a default value for a column when NULL is provided

To enforce a unique value for a column

To define a primary key for a table

View this question

What is the purpose of an index in a database?

To store computed values based on other columns.

To store large binary objects such as images or documents.

To improve the performance of data retrieval operations.

To optimize the database querying speed

To enforce referential integrity between tables.

View this question

What is the purpose of the DROP TABLE statement in SQL?

To delete a database

To delete a table from a database

To delete a column from a table

To delete a record from a table

View this question

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