Tag: SQL
Trino’s Fort Knox: A Deep Dive into Data Security and Governance
In the era of data-driven decision-making, safeguarding sensitive data and ensuring governance compliance are paramount concerns. Trino, a versatile SQL…
Unlocking the Power of Trino: Advanced Features that Set it Apart from Other SQL Query Engines
In the world of data analytics and SQL query engines, Trino (formerly known as PrestoSQL) has emerged as a formidable…
SQL : How to handle to increment a Column by 1 , if its current or initial value is NULL
If mycolumn is NULL, you need to handle it differently when incrementing it in a MySQL UPDATE statement. Instead of…
SQL : How to execute large dynamic query in SQL
There are a few ways to execute large dynamic queries in SQL, but one common method is to use a…
Explain dense_rank. How to use dense_rank function in PySpark ?
In PySpark, the dense_rank function is used to assign a rank to each row within a result set, based on…
What are the things that you need to know on converting SQL queries from Redshift to Snowflake ?
There are a few differences between Redshift and Snowflake that you will need to take into account when converting SQL…
What are the Aggregate functions in SQL ?
Aggregate functions are the function that is used to compute against a “returned column of numeric data” from your select…
What is Seeds in dbt? How to load CSV files into your data warehouse using the dbt ?
Seeds are the CSV files in your dbt project. There will be a seed director , that dbt can load…
Explain how can you implement dynamic partitioning in Hive (automatically creating partition based on column value)
Dynamic partition in hive Dynamic partitioning is a tactical method for loading data from a…
How to insert from Non Partitioned table to Partitioned table in Hive?
You can insert data from Non Partitioned table to Partitioned table , in short , if you want to have…
