[04/Vienne/07]

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Which PostgreSQL package provides functions and operators for manipulating null-free arrays of integers?

pg_stat_statements

pgcrypto

intarray (correct)

ltree

Which PostgreSQL package offers data types and functions for hierarchical labels?

uuid-ossp

plpgsql

ltree (correct)

log_fdw

Which PostgreSQL package provides execution statistics of SQL statements but is not available for API users?

pgcrypto

dblink

pg_stat_statements (correct)

hstore

API users are allowed to deploy dblink in PostgreSQL packages.

False Signup and view all the answers

The hstore data type for key value pairs might be removed from PostgreSQL.

True Signup and view all the answers

pgcrypto offers crypto functions for generating SHA-256 hashes.

False Signup and view all the answers

Match the following PostgreSQL packages with their primary usage:

plpgsql = Stored procedures hstore = Data type for key value pairs pg_stat_statements = Execution statistics of SQL statements ltree = Data types and functions for hierarchical labels Signup and view all the answers

Match the following PostgreSQL packages with their allowed usage for API users:

plpgsql = Allowed to deploy dblink = Not allowed to create pg_stat_statements = Not available ltree = Allowed to use Signup and view all the answers

Match the following PostgreSQL packages with their provided functionality:

intarray = Functions and operators for manipulating null-free arrays of integers pgcrypto = Crypto functions for MD5 uuid-ossp = UUID generation functions log_fdw = PostgreSQL log querying Signup and view all the answers

What is the primary purpose of a package in PostgreSQL?

To organize and manage related objects in a modular and maintainable way Signup and view all the answers

What benefit do packages provide in terms of namespace management?

Preventing name collisions and conflicts with objects in other schemas Signup and view all the answers

How do packages promote modularity in PostgreSQL?

By encapsulating related objects together for easier management and reuse Signup and view all the answers

What is a key feature of packages in terms of visibility control?

Providing visibility control mechanisms for specifying object accessibility Signup and view all the answers

How do packages contribute to organization and maintainability of codebases in PostgreSQL?

By grouping related objects together and providing a clear structure for accessing and managing them Signup and view all the answers

What statement is used to create a package in PostgreSQL?

CREATE PACKAGE statement Signup and view all the answers

How can objects be added to a package in PostgreSQL?

Using standard SQL statements such as CREATE FUNCTION or CREATE PROCEDURE Signup and view all the answers

What privilege can be optionally defined when creating a package in PostgreSQL?

Access privileges for the package's objects Signup and view all the answers

True or false: In PostgreSQL, a package is a collection of objects that include functions, procedures, and composite types.

True Signup and view all the answers

True or false: Packages in PostgreSQL prevent name collisions and conflicts with objects in other schemas.

True Signup and view all the answers

True or false: Packages in PostgreSQL do not promote modularity by encapsulating related objects together.

False Signup and view all the answers

True or false: Packages in PostgreSQL provide visibility control mechanisms to specify the accessibility of objects within the package.

True Signup and view all the answers

True or false: Creating a package in PostgreSQL involves using the ALTER PACKAGE statement.

False Signup and view all the answers

True or false: Once a package is created in PostgreSQL, you can add objects to it using standard SQL statements, such as CREATE FUNCTION or CREATE PROCEDURE.

True Signup and view all the answers

True or false: Packages in PostgreSQL do not improve the organization and maintainability of complex codebases.

False Signup and view all the answers

True or false: Packages in PostgreSQL provide a namespace for the objects they contain, preventing name collisions and conflicts with objects in other schemas.

True Signup and view all the answers

Match the following PostgreSQL features with their benefits:

Namespace Management = Preventing name collisions and conflicts with objects in other schemas Modularity = Encapsulating related objects together for easier management and reuse Visibility Control = Specifying accessibility of objects within the package Organization and Maintainability = Improving the organization and maintainability of complex codebases Signup and view all the answers

Match the following statements with their role in creating a package in PostgreSQL:

CREATE PACKAGE statement = Specifies the package name and access privileges for the package's objects CREATE FUNCTION or CREATE PROCEDURE = Adding objects to a package using standard SQL statements ALTER PACKAGE statement = Not involved in creating a package in PostgreSQL DROP PACKAGE statement = Not involved in creating a package in PostgreSQL Signup and view all the answers

Match the following PostgreSQL packages with their provided functionality:

pgcrypto = Crypto functions for generating SHA-256 hashes hstore = Data types and functions for hierarchical labels dblink = Execution statistics of SQL statements but not available for API users array_agg = Functions and operators for manipulating null-free arrays of integers Signup and view all the answers

Match the following privileges with their optional definition when creating a package in PostgreSQL:

Access privileges = Optionally defined for the package's objects when creating a package in PostgreSQL Schema privileges = Not involved in the optional definition when creating a package in PostgreSQL Table privileges = Not involved in the optional definition when creating a package in PostgreSQL Role privileges = Not involved in the optional definition when creating a package in PostgreSQL Signup and view all the answers

[04/Vienne/07]

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Questions and Answers

Which PostgreSQL package provides functions and operators for manipulating null-free arrays of integers?

Which PostgreSQL package offers data types and functions for hierarchical labels?

Which PostgreSQL package provides execution statistics of SQL statements but is not available for API users?

API users are allowed to deploy dblink in PostgreSQL packages.

The hstore data type for key value pairs might be removed from PostgreSQL.

pgcrypto offers crypto functions for generating SHA-256 hashes.

Match the following PostgreSQL packages with their primary usage:

Match the following PostgreSQL packages with their allowed usage for API users:

Match the following PostgreSQL packages with their provided functionality:

What is the primary purpose of a package in PostgreSQL?

What benefit do packages provide in terms of namespace management?

How do packages promote modularity in PostgreSQL?

What is a key feature of packages in terms of visibility control?

How do packages contribute to organization and maintainability of codebases in PostgreSQL?

What statement is used to create a package in PostgreSQL?

How can objects be added to a package in PostgreSQL?

What privilege can be optionally defined when creating a package in PostgreSQL?

True or false: In PostgreSQL, a package is a collection of objects that include functions, procedures, and composite types.

True or false: Packages in PostgreSQL prevent name collisions and conflicts with objects in other schemas.

True or false: Packages in PostgreSQL do not promote modularity by encapsulating related objects together.

True or false: Packages in PostgreSQL provide visibility control mechanisms to specify the accessibility of objects within the package.

True or false: Creating a package in PostgreSQL involves using the ALTER PACKAGE statement.

True or false: Once a package is created in PostgreSQL, you can add objects to it using standard SQL statements, such as CREATE FUNCTION or CREATE PROCEDURE.

True or false: Packages in PostgreSQL do not improve the organization and maintainability of complex codebases.

True or false: Packages in PostgreSQL provide a namespace for the objects they contain, preventing name collisions and conflicts with objects in other schemas.

Match the following PostgreSQL features with their benefits:

Match the following statements with their role in creating a package in PostgreSQL:

Match the following PostgreSQL packages with their provided functionality:

Match the following privileges with their optional definition when creating a package in PostgreSQL:

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