SQL Server Certification (Self-Paced)
IDCETT

• Understand core database concepts, including tables, rows, columns, and different types of SQL
• Connect to databases and navigate SQL Server Management Studio using tools like Object Explorer and Query Editor
• Write SELECT statements to retrieve data, specify columns, sort results, and remove duplicates
• Use WHERE, AND, OR, IN, and NOT clauses to filter data and apply pattern matching with wildcard characters
• Explore data types, comparison operators, and case sensitivity to refine queries with greater control
• Learn to join tables using INNER JOIN and understand relational database concepts through ER diagrams and table aliases

This intermediate SQL course helps you expand your data analysis and manipulation skills with advanced querying techniques.

• Compare INNER and OUTER JOIN types, and use LEFT, RIGHT, and FULL JOINs to combine data across tables
• Identify and work with NULL values to ensure complete and accurate data analysis
• Use the CAST function to convert data types, making your queries more flexible
• Perform calculations with aggregate functions like SUM, COUNT, AVG, MAX, and MIN to summarize data
• Apply date functions to extract, format, and compare dates for time-based analysis
• Group results using GROUP BY and filter grouped data with the HAVING clause for advanced segmentation

• Write subqueries to create layered queries using single-value, multi-value, and table-value structures
• Use window functions with OVER and PARTITION BY to apply aggregate logic across rows without grouping
• Implement conditional logic with CASE and IIF statements to dynamically transform query results
• Manipulate text data using string functions like SUBSTRING, CHARINDEX, UPPER, and more
• Apply self-joins to compare records within the same table and understand their structure and use cases
• Build and query views, user-defined functions, and stored procedures to modularize your SQL code