SQL Developer Intern

SQL Developer Intern

Remote | Internship | India | 1–3 months | ₹16,500/month

About the Role

Crossing Infotech is seeking an SQL Developer Intern to gain practical experience with SQL, relational databases, data retrieval, and reporting. This internship is ideal for freshers and recent graduates with basic database knowledge looking to enhance their SQL skills.

Key Responsibilities

• Write SQL queries to retrieve and organize information from databases.
• Create queries using filtering, sorting, grouping, and aggregation.
• Work with relational database tables and relationships.
• Assist with creating and modifying database tables under supervision.
• Perform INSERT, UPDATE, DELETE, and SELECT operations.
• Work with joins and subqueries for data retrieval.
• Assist with database validation and data-quality checks.
• Identify duplicate, missing, or inconsistent records.
• Prepare SQL-based reports and data extracts.
• Assist with creating views and basic database objects.
• Test queries and verify returned results.
• Troubleshoot basic SQL errors and query issues.
• Maintain documentation for database-related assignments.
• Use development tools to test and manage database queries.
• Follow appropriate access-control and data-handling practices.

Who Should Apply

• Freshers and recent graduates.
• Final-year students from Computer Science, IT, BCA, MCA, Engineering, Data Science, or related fields.
• Candidates interested in database development, data analysis, or backend development.
• Candidates who have completed academic or personal SQL projects.

Requirements & Tech Stack

• Basic understanding of SQL.
• Knowledge of relational database concepts.
• Understanding of tables, rows, columns, keys, and relationships.
• Familiarity with SELECT queries.
• Basic knowledge of filtering, sorting, grouping, and joins.
• Logical and analytical thinking.
• Good attention to detail.
• Basic understanding of data validation.
• Willingness to learn database-development practices.
• Good to have: MySQL, PostgreSQL, or SQL Server experience.
• Good to have: Knowledge of subqueries and Common Table Expressions.
• Good to have: Understanding of database normalization.
• Good to have: Basic knowledge of indexes and query performance.
• Good to have: Familiarity with stored procedures and views.
• Good to have: Experience using MySQL Workbench, pgAdmin, or similar tools.
• Good to have: Basic Python or Java knowledge.
• Good to have: Academic or personal database projects.

What You Can Gain

• Practical SQL development experience.
• Stronger understanding of relational databases.
• Experience writing and testing SQL queries.
• Exposure to database design fundamentals.
• Data validation and quality-checking experience.
• Understanding of SQL reporting and data extraction.
• Experience troubleshooting database queries.
• Exposure to professional database-development workflows.