STEP 1: Start the program. STEP 2: Create two different tables with its essential attributes. STEP 3: Insert attribute values into the table. STEP 4: Create the Nested query and join from the above ...

A Subquery is a query within another SQL query and embedded within the WHERE clause. A subquery is used to return data that will be used in the main query as a condition to further restrict the data ...

Abstract: In the software industry, Structured Query Language (SQL) remains a highly sought-after skill required by most employers. SQL is widely adopted as the preferred declarative language to ...

During optimization, the cardinality estimation process is responsible for estimating the number of rows processed at each step in an execution plan. Cardinality estimation uses a combination of ...

Quite often, in Power Query, you want to ‘nest’ calculations and transformations – apply them not across the whole table, but repeat the same calculation or transformation across multiple groups of ...

Abstract: With the development of web application, the demand of query performance and expansion becomes increasingly necessary. Relational database seems hardly handling with this, more and more ...

A year ago support for nested data types in Excel was announced on the Excel blog, but the announcement didn’t have much detail about what nested data types are and the docs are quite vague too. I was ...