Query speed is affected by schema design, query shape, indexes, server resources, and concurrency. A repeatable investigation is more reliable than applying generic tuning tips.
Category: ব্লগ । Blog
ব্লগ । Blog
Nov 10
Building a SQL Server Data Warehouse: Revisiting the SQL Server 2012 Workflow
A SQL Server data warehouse collects and reshapes operational information for analytics. An older SQL Server 2012 walkthrough is a useful starting point for understanding warehouse layers, although modern deployment tools and platform choices can differ.
Nov 10
Designing SQL Server Data Warehouses: Fact Tables, Dimensions, and Star Schemas
A data warehouse organizes data for reporting and analysis. A common starting point is a star schema with measurable events in fact tables and descriptive attributes in dimension tables.
Nov 10
SQL Server Management Data Warehouse: Historical Architecture and Monitoring Lessons
SQL Server 2008 R2 introduced management and data-collection approaches that stored diagnostic snapshots in a management data warehouse. The historical design illustrates the value of tracking trends rather than relying on a one-time counter.
Nov 10
Migrating Legacy PHP SQL Server Stored Procedure Code to Supported Drivers
Older PHP tutorials used the obsolete mssql_* extension for SQL Server procedure calls. A modern rewrite should preserve the application behaviour while changing the database access layer.
Nov 10
SQL and SQL Server Interview Questions: Concepts with Short Answers
A good SQL Server interview review connects fundamental relational principles to practical database development, administration, and troubleshooting.
Nov 10
Improving SQL Server Cursor Performance: Practical Options and Set-Based Alternatives
Cursors can become costly when they fetch many records and run additional queries inside a loop. Optimization therefore begins by asking whether row-by-row work is necessary at all.
Nov 10
SQL Server Cursors: How They Work and a Complete T-SQL Example
A cursor provides row-by-row navigation through a query result. It is helpful when a task genuinely needs sequential procedural work, but should not replace set-based SQL without a reason.
Nov 10
SQL Server Query Hints: When to Influence the Optimizer and When Not To
The SQL Server query optimizer normally chooses join strategies and access paths from statistics and cost estimates. Query, join, and table hints can modify that choice, but they can also lock a query into a poor plan.
Nov 10
SQL Server Scalability: Revisiting SQL Server 2005 Concepts for Modern Systems
The classic scaling choices are scale up—more capacity on one server—and scale out—more servers sharing particular workloads. The older SQL Server 2005 discussion remains useful conceptually, but its hardware assumptions are historical.
