The book covers a range of topics, including:
: Techniques for querying multiple tables simultaneously to extract deep insights. Subqueries and Views Martin Gruber Understanding Sql Pdf Download
: Offers detailed community reviews and rating breakdowns. Amazon : Purchase physical copies for long-term reference. Understanding SQL : Gruber, Martin - Internet Archive The book covers a range of topics, including:
| Chapter | Topic | What You Learn | | :--- | :--- | :--- | | 1 | An Introduction to SQL | History of relational databases, why SQL exists. | | 2 | Retrieving Data with SELECT | Basic queries, filtering with WHERE. | | 3 | Sorting & Aggregating Data | ORDER BY, GROUP BY, and aggregate functions (COUNT, SUM, AVG). | | 4 | Joining Tables | Inner joins, outer joins, self-joins—explained with Venn diagrams. | | 5 | Subqueries | Nested SELECTs, correlated subqueries. | | 6 | Inserting, Updating, Deleting | Data manipulation language (DML). | | 7 | Creating & Altering Tables | Data definition language (DDL), data types. | | 8 | Views, Indexes, Security | Performance and permissions. | | 9 | Transactions | COMMIT, ROLLBACK, and concurrency. | Understanding SQL : Gruber, Martin - Internet Archive