HJ

Leave HJ’s trace, All-In

[SQL First Step] 36. Transaction

Transaction, Commit, Rollback

[SQL First Step] 35. Normalization

Normalization

[SQL First Step] 34. Designing Database

Database Design, ER Diagram

[SQL First Step] 33. Relational Model

Relation and Relational Algebra

[SQL First Step] 32. Table Joining

Table joining, INNER JOIN and LEFT JOIN