The Young DBA

Congratulations ! You’ve made the leap from star individual contributor to technical manager. You are no longer just responsible for your code; you are responsible for a team, their focus, their output, and their sanity. Among the many new skills you need to master—delegation, conflict resolution, and strategic thinking—there is one that often feels the most uncomfortable yet is the most critical to your success: handling the word "No." For many technical professionals, our instinct is to be problem-solvers. We like to say "yes." "Yes" means we can build it. "Yes" means we can fix it. "Yes" means we are helpful. But as a manager, always saying "yes" is a trap. It leads to scope creep, burnt-out teams, missed deadlines, and a dilution of your strategic goals. Mastering the "No" —both saying it and receiving it—is not about being stubborn or difficult. It is about protecting your team’s focus and ensuring you are deliv...

Think of the QUALIFY clause as the secret shortcut of the SQL world. While most of us grew up nesting subqueries just to filter the results of a window function, QUALIFY lets you do it in a single step. It acts on window functions exactly how HAVING acts on GROUP BY aggregations. Why It’s a Game Changer Cleaner Code : It eliminates the "Subquery Pyramid of Doom." No more wrapping a SELECT inside a SELECT just to get the ROW_NUMBER() = 1. Logical Flow: It filters results after window functions are calculated but before the final ORDER BY and LIMIT. Performance : Engines like Snowflake, BigQuery, and Teradata can optimize the execution plan better when the filter is explicit. The Syntax in Action Instead of writing 15 lines of CTEs to find the most recent login for every user, you can simply write: SELECT user_id, login_time, device_type FROM user_logs QUALIFY ROW_NUMBER() OVER (PARTITION BY user_id ORDER BY login_time DESC) = 1;

  The  India AI Impact Summit 2026 , held from February 16–20 at Bharat Mandapam in New Delhi, has emerged as a landmark event for the Global South. As of today, February 19, 2026, the summit is nearing its conclusion with several historic outcomes focused on democratizing technology and sovereign AI development.   The summit, themed " People, Planet, and Progress ," has moved beyond theoretical debate into concrete financial and structural commitments. 1. Major Financial & Infrastructure Commitments The most tangible outcome is the massive scale of investment and infrastructure pledged to make India a global AI powerhouse:   **₹20,000 Crore Investment: Global and domestic investors finalized commitments exceeding ₹20,000 crore to be deployed over the next two years into India's AI ecosystem.   GPU Democratization : Under the IndiaAI Mission, the government announced the onboarding of over 38,000 GPUs. Crucially, these are being made available...

We can do backup and restore on instance and DB level both. on-demand backup and automatic backup are possible at instance level only which we can configure Google Cloud Console. Database level there is no options and features available for full and differential backup like SQL server in cloud SQL database. We can do this task with Export feature this is similar to full backup and this we can do from console or portal. If we want to do automated DB export (full backup) then we should design ourselves with the help of services . Google provide some services like Google Function and Scheduler which we can use for this purpose as look like following architecture. Here is following steps which we can use to setup Create a bucket in Google Cloud Storage. Create Cloud Function to export a Cloud SQL database Grant Permission for the Cloud Function to access Cloud SQL export Test out the Cloud Function Create Cloud Scheduler Job to trigger the Cloud Function once a week  For detail or step...

The storage engine is the core component of  any database which is responsible for handling  from disk to memory. Mongodb Support multiple storage engine, Choosing the appropriate storage engine for your use case can significantly impact the performance of your applications. WiredTiger Storage Engine In-Memory Storage Engine MMAPv1 Storage Engine MongoDB removes their initial storage engine MMAPv1 and now WiredTiger Storage Engine is default storage engine. So we should understand what the reason is behind these changes. MMApV1 storage engine : It allows Concurrency control level on collection, so write performance is just good. This engine does not allow Compression support. WiredTiger Storage Engine :  Concurrency control in wiredtiger is maintaining on document level. It uses WiredTiger uses MultiVersion Concurrency Control (MVCC) like other RDBMS, So write performance is excellent.  Yes this engine allows compression. With WiredT...

Either Datawarehouse or BigData, ETL or ELT is the major part, or you can say it plays a vital role in Data Transformation Life cycle. ELT-ETL used in any kind of data related operations like, Data migration, Data transformation , Business intelligence, Datawarehouse, Big data and Analytics. ETL is Extract transform and Load whereas ELT is extract load then transform. Both have their own pros and cons but now a days ELT is more popular than ETL. This is why because size of data is growing & growing for transformation. ELT also supporting Data virtualization concept where actual original data will reside on system without any modification and transformation will less. SQL server has reach sets of tools for ETL & ELT .  Here I am sharing some important Differences between ETL and ELT which we should know before jumping on features. SrlNo Dimension ETL ELT 1 Technology Adoption ETL is a well-developed process used for over 20 years ELT is a new technology ...