If you’ve ever stared at a “connection timed out” error and thought, “Is it DNS? Is it routing? Is it security groups? Is it the firewall?” — you’re not alone.…
Here’s a comprehensive list of 50 Azure Data Factory (ADF) interview questions across essential, advanced, and scenario-based levels with answers. This will help you prepare effectively: ✅ Essential Level (Basic…
In Azure SQL Database – Hyperscale tier, the Standard-series (Gen5) and Premium-series hardware options differ in CPU architecture, memory, storage throughput, and performance characteristics. Here’s a clear comparison: 🧾 Standard-series…
What is a High Availability (HA) Replica? Key Features: How Data is Synced Across Replicas: Why Use HA Replicas? Simple Analogy: Think of a high-availability replica like a backup power…
Interview Questions on Explain Plan in Azure SQL Database Explain Plan (also known as Execution Plan) in Azure SQL Database helps in understanding how the SQL Server optimizer processes a…
Here are some interview questions related to query hints in Azure SQL Database, along with sample answers: 1. What are query hints in SQL Server or Azure SQL Database, and…
Here are scenario-based interview questions related to Azure SQL Database query tuning and system performance tuning, along with guidance on how to answer: 1. Scenario: High CPU Usage Question: You…
Here are some interview questions related to Azure SQL Database query tuning and system performance tuning, along with sample answers: 1. What are common causes of poor performance in Azure…
The primary key constraint with a clustered index and a regular clustered index are similar in how they physically organize data in a table, but they have distinct purposes and…
A partitioned table divides data into smaller, manageable chunks (partitions) based on a partition key (e.g., a date column). These partitions can be stored across multiple filegroups to distribute the…
No, Azure SQL Database does not allow direct modification of a partition function to add more partitions or change existing boundaries. Partition functions in Azure SQL Database (and SQL Server)…
Adding partitioning to an existing table in Azure SQL Database requires the following steps. Unfortunately, you cannot directly apply partitioning to an already populated table. Instead, you must create a…
When using partitioned tables in Azure SQL Database, certain operations are either not supported outright or require special considerations due to the complexities introduced by partitioning. These limitations stem from…
Partitioning tables in Azure SQL Database allows you to manage large tables more efficiently by splitting them into smaller, manageable partitions. These partitions are based on a column (commonly a…
An indexed view is a view in SQL Server or Azure SQL Database that has a unique clustered index created on it. Unlike a regular view, which is a virtual…
Error Code 1205 in Azure SQL Database Error Code 1205 occurs in Azure SQL Database when a deadlock is detected. Deadlocks happen when two or more transactions are waiting on…
Error Code 512 in Azure SQL Database typically occurs when there is a problem related to query size limits or data constraints. This error may be encountered when a query…
Error Code 18488 in Azure SQL Database occurs when a user tries to connect, but their password has expired or needs to be changed due to security policies. This error…
Error Code 49919 – Overview Error Code 49919 in Azure SQL Database occurs when an operation on a database or elastic pool cannot proceed due to resource limitations, typically caused…
Error Code 49918 – Overview Error Code 49918 in Azure SQL Database occurs when the client attempts to create a new database or elastic pool that exceeds the available resources…