rank – CodeRavo

Retrieving Rows with Maximum Date per Group in SQL

In many scenarios, you may need to retrieve rows from a database table where each row … Retrieving Rows with Maximum Date per Group in SQLRead more

database, filtering, grouping, join(), performance optimization, query, rank, row-number, SQL, subquery, window function

Retrieving Top Records by Category

In many database applications, it’s common to need to retrieve a limited number of top records … Retrieving Top Records by CategoryRead more

common-table-expressions, ctes, partition-by, rank, row-number, SQL, window-functions

Identifying and Selecting Duplicate Records Based on Multiple Fields in SQL

When working with databases, a common task is to identify duplicate records based on specific fields. … Identifying and Selecting Duplicate Records Based on Multiple Fields in SQLRead more

duplicates, group by, having, partitioning, rank, row-number, SQL, window-functions

Retrieving Top Values in PostgreSQL

In PostgreSQL, retrieving the top values from a table is a common task that can be … Retrieving Top Values in PostgreSQLRead more

dense-rank, fetch-first, indexing, limit, performance optimization, PostgreSQL, rank