01Which statement best captures the lesson 'Tables, Rows, Columns, and Data Types'?
Beginner Foundation · F09
Databases and SQL Primer
Prepare for PostgreSQL and Prisma by understanding tables, keys, relationships, constraints, and basic SQL.
10lessons
3kwords
5module checks
Lessons
013 min023 min033 min043 min053 min063 min073 min083 min093 min103 min
Tables, Rows, Columns, and Data Types
A relational table represents a set of rows with named typed columns.
Lab — Tables, Rows, Columns, and Data Types
Hands-on transfer lab for the preceding concept.
Primary Keys, Foreign Keys, and Relationships
Primary keys identify rows; foreign keys state that a referenced parent must exist.
Lab — Primary Keys, Foreign Keys, and Relationships
Hands-on transfer lab for the preceding concept.
SELECT, INSERT, UPDATE, and DELETE
SELECT describes which rows/columns to read; WHERE filters; ORDER BY makes sequence explicit.
Lab — SELECT, INSERT, UPDATE, and DELETE
Hands-on transfer lab for the preceding concept.
Joins, Grouping, and Aggregation
INNER JOIN keeps matching rows; LEFT JOIN preserves left rows even without a match.
Lab — Joins, Grouping, and Aggregation
Hands-on transfer lab for the preceding concept.
Transactions and Indexes
A transaction groups operations so atomicity/consistency expectations can be preserved.
Lab — Transactions and Indexes
Hands-on transfer lab for the preceding concept.
Module check
Can you recognize the correct mental model?
02Which statement best captures the lesson 'Primary Keys, Foreign Keys, and Relationships'?
03Which statement best captures the lesson 'SELECT, INSERT, UPDATE, and DELETE'?
04Which statement best captures the lesson 'Joins, Grouping, and Aggregation'?
05Which statement best captures the lesson 'Transactions and Indexes'?