A Database Administrator (DBA) is the one who designs, implements, maintains, and solves database problems. The major objective of a DBA is making the database available, safe, and well performing at...
SQL Server 2025 is expected to have more advanced performance, AI integration, security, cloud-native capabilities, and scalability in modern enterpri...
The SQL Server has optimal query execution, proper indexing and frequent modification of the system based on the data load very efficiently.
The isolation of database transactions makes the operations independent of each other which prevents a conflict, ensures the consistency of data and e...
The RANK() function is used to number the rows in partitions, with ties for ties, to sort and rank the results of a query.
Checks SQL Server tables which do not have clustered indexes, but assist in improving performance, by revealing tables which can also be indexed.
Updates The statistics that are used by the query optimizer to select efficient execution plans are maintained through the SQL Server statistics updat...
In SQL Server, joins are used to combine rows from two or more tables based on a related column between them.
SQL Server FORCESEEK hint for sql server is used to make the optimizer search through the index, which enhances the performance of the query by elimin...
DBCC SHOW_STATISTICS examines indexes and data rows of a table and displays the finding.
COUNT(*) counts the total rows, COUNT(1) counts as COUNT(*), and COUNT(column) counts only non- NULL values of column.
The ISNULL() function in SQL Server is used to replace NULL values with a specified replacement value.
The cloud platform of Microsoft is called Azure. It offers scalable computational facilities, storage, databases and artificial intelligence services...
Common Table Expressions (CTEs) in SQL Server provide a temporary result set for organizing complex queries and improving code readability.
CHARINDEX in SQL Server returns the starting position of a substring within a string. It helps in locating text patterns and supports optional start p...
Study the role and the distinction between the types of SQL commands: DDL, DML, and DCL, and TCL utilized to control and create the structure of the d...
In SQL Server, SET STATISTICS PROFILE ON gives the actual execution plan that provides the details about the queries that are run on the database as w...
The CASE statement in SQL Server is used to add conditional logic to your queries. It works like an IF-THEN-ELSE statement, allowing you to return dif...
When you are running SQL Server, there are a couple of well-worn maneuvers that keep things moving. Table index, query tune and monitor the logs so th...
This query can be used to get the 10 most CPU consuming SQL statements and will assist the DBA with the identification and optimization of costly bott...
Fill Factor is one of the options that deal with the amount of space to leave in every index page
LEN() function in SQL Server provides the count of the total characters in a string not counting rear spaces; DATALENGTH() gives out the total numbers...
The All-In-One SQL Server Performance Tuning Bundle provides professional tools, scripts and guidelines in order to minimize query execution time, use...
A Table Spool makes part of query result to be packed pool together in tempdb, which aids SQL Server in data reuse by reusing the similar variable res...
ISNULL() and COALESCE() functions in SQL Server are commonly used to replace or manage NULL values in query results.
Unused Indexes are indexes that exist in a table but are rarely or never used by SQL Server for reading data. These indexes consume storage and slow d...
Relative Query Cost in SQL Server refers to the estimated percentage of resources (like CPU and I/O) used by each part of a query or by multiple queri...
Cloud-based data integration is made possible by Azure Data Factory, which also transforms and orchestrates data operations from many sources for busi...
Redundant indexes in SQL Server are duplicating or overlapping indexes which both consume unnecessary space and can negatively affect performance to t...
Identify fragmented indexes in SQL Server to improve query performance and optimize storage by rebuilding or reorganizing inefficient index structures...
A Database Administrator (DBA) is the one who designs, implements, maintains, and solves database problems. The major objective of a DBA is making the...
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SQL processes queries in a specific logical order, not writing order. Understanding this flow helps build accurate and optimized queries.
Rebuilding all indexes enhances database by re-ordering or re-assembling fragments in all indexes within all the tables of the database.
DENSE_RANK() produces unique ranked numbers without gaps in them in the event of ties.
RANK functions assign ordered numbers to rows: RANK, DENSE_RANK, ROW_NUMBER, and NTILE help with sorting and grouping.
