{"id":31676121,"url":"https://github.com/techysanoj/sql-course","last_synced_at":"2025-10-08T05:03:41.588Z","repository":{"id":313743933,"uuid":"1052483401","full_name":"techysanoj/SQL-Course","owner":"techysanoj","description":"Step-by-step SQL tutorials and practical examples covering queries, constraints, transactions, and more. 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Every commit adds a new concept, and you can refer to the associated `.sql` file for hands-on code and explanations.\n\nBelow you’ll find an example of the first 10 commits in the **exact order they were made**, with direct links to both the commit and the file(s) you should study for that topic.\n\n---\n\n##First 10 Commits with Relevant Files\n\n| Order | Commit Message \u0026 Link                                                                                                              | File(s) to Refer (Example)                                                                                         | Description/Topic                                   |\n|-------|------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------|\n| 1     | [understanding ifNULL function in sql statement](https://github.com/techysanoj/SQL-Course/commit/b96b8d7db77e440b34d715cd73c83ef0e2a9e2d9) | [`ifNULL function.sql`](https://github.com/techysanoj/SQL-Course/blob/main/ifNULL%20function.sql)                  | Handling NULLs with `ifNULL`                        |\n| 2     | [understanding AS keyword in sql statement](https://github.com/techysanoj/SQL-Course/commit/81e9cbd7bbc3a0796d9a5f9b1888cbdc63acc342) | [`as_keyword.sql`](https://github.com/techysanoj/SQL-Course/blob/main/as_keyword.sql)                              | Using the `AS` keyword for aliases                  |\n| 3     | [understanding insert into statements](https://github.com/techysanoj/SQL-Course/commit/131b7cdc449a6b3d61d49975035071ba307d2b3c)   | [`insert_into_statements.sql`](https://github.com/techysanoj/SQL-Course/blob/main/insert_into_statements.sql)      | The `INSERT INTO` statement                         |\n| 4     | [understanding auto_increment keyword](https://github.com/techysanoj/SQL-Course/commit/b9874047360d6c3c3c1dfa73da71dc1599021211)   | [`auto_increment.sql`](https://github.com/techysanoj/SQL-Course/blob/main/auto_increment.sql)                      | The `AUTO_INCREMENT` feature                        |\n| 5     | [understanding default integrity constraint](https://github.com/techysanoj/SQL-Course/commit/fa81a488c3cb949e9422045b408ff7e000124426) | [`default_integrity_constraint.sql`](https://github.com/techysanoj/SQL-Course/blob/main/default_integrity_constraint.sql) | Using `DEFAULT` integrity constraints               |\n| 6     | [understanding check integrity constrain](https://github.com/techysanoj/SQL-Course/commit/758b53ccef1a87e07bd567b2678d73f699c9e7ed) | [`check_integrity_constraint.sql`](https://github.com/techysanoj/SQL-Course/blob/main/check_integrity_constraint.sql) | Using `CHECK` constraints                           |\n| 7     | [understanding foreign key integrity constraint](https://github.com/techysanoj/SQL-Course/commit/18abe68e620cc6ad981b81d20c77a04e482279cc) | [`foreign_key_integrity_constrain.sql`](https://github.com/techysanoj/SQL-Course/blob/main/foreign_key_integrity_constrain.sql) | `FOREIGN KEY` constraints                           |\n| 8     | [understanding primary key integrity constraint](https://github.com/techysanoj/SQL-Course/commit/c251ecfd6a1d997b1b075d0afac52ea7ee4b5053) | [`primary_key_integrity_constraint.sql`](https://github.com/techysanoj/SQL-Course/blob/main/primary_key_integrity_constraint.sql) | The `PRIMARY KEY` constraint                        |\n| 9     | [understanding unique integrity constraint](https://github.com/techysanoj/SQL-Course/commit/2d2023da997c332f83cf1268a7ebebf268cadb61) | [`unique_integrity_constrain.sql`](https://github.com/techysanoj/SQL-Course/blob/main/unique_integrity_constrain.sql) | The `UNIQUE` constraint                             |\n| 10    | [understanding not null integrity constraint](https://github.com/techysanoj/SQL-Course/commit/9cefa6fffbd77ea0d90048b11b9d18c297e470aa) | [`not_null_integrity_constraint.sql`](https://github.com/techysanoj/SQL-Course/blob/main/not_null_integrity_constraint.sql) | The `NOT NULL` constraint                           |\n\n\u003e **Note:** This is only a sample of the first 10 commits.  \n\u003e For the full and up-to-date commit history, visit: [Commits on GitHub](https://github.com/techysanoj/SQL-Course/commits/main?per_page=10\u0026page=1)\n\n---\n\n## How to Learn from This Repo\n\n1. **Follow the commits in order.** Start with the oldest commit to build your knowledge step-by-step.\n2. **Open the linked file for each commit** to see the code, comments, and explanations for the topic.\n3. **Run and modify** the SQL code in your local SQL environment or any SQL playground.\n4. **Repeat** for every commit to cover all core SQL concepts, great for interviews, real-world usage, and mastering SQL.\n\n---\n\n## Why Use This Approach?\n\n- Each concept is introduced clearly and progressively.\n- You always know what file to refer to for hands-on practice.\n- Keywords like `SQL constraints`, `SQL NULL`, `SQL INSERT`, `SQL AUTO_INCREMENT`, and more are covered in depth for both SEO and practical learning.\n- Ideal for beginners, interview prep, or anyone looking to deepen their SQL expertise.\n\n---\n\n**Happy Learning!**  \n⭐ Star this repository and follow along commit-by-commit for the best results.\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftechysanoj%2Fsql-course","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftechysanoj%2Fsql-course","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftechysanoj%2Fsql-course/lists"}