Database

Database Tutorials

SQL Server, T-SQL, schema design, and data access tutorials for application developers.

All tutorials
Database tutorials

What you will find here

Each course is divided into modules and lessons—introduction, walkthrough, code samples, real-world notes, and interview preparation—following a consistent structure across every technology track.

  • Free, step-by-step lessons
  • Stable SEO-friendly URLs
  • Syllabus page per course
  • Original content written for Toolliyo
Beginner to Advanced

SQL Server Tutorial

100-article SQL Server master path — T-SQL, indexing, stored procedures, HA, SQL Server 2022, and DataVerse projects.

100 lessons · 250 views
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Beginner to Advanced

MySQL Tutorial

100-article MySQL master path — InnoDB, window functions, replication, AWS RDS, and DataFlow projects.

100 lessons · 259 views
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Beginner to Advanced

MongoDB Tutorial

100-article MongoDB master path — aggregation, sharding, Atlas, vector search, and NoSQLVerse projects.

100 lessons · 251 views
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Beginner to Advanced

Oracle SQL Tutorial

96-article Oracle master path — PL/SQL, RAC, Data Guard, RMAN, AWR, OCI, and OracleCore projects.

96 lessons · 241 views
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Beginner to Advanced

PostgreSQL Tutorial

100-article PostgreSQL master path — MVCC, JSONB, pgvector, replication, Patroni, and PostgresVerse projects.

100 lessons · 246 views
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