Category: SQL Server
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DBA Worries Continued DBMS Concepts L1 DBA My SQL MySQL Architecture MySQL Basics MySQL L1 SQL Server
Deterministic and Nondeterministic Functions
Deterministic functions: Deterministic functions always result in the same output every time they are called with a fixed set of input values and given the same condition of the database. For example, AVG() function always results the same result given the qualifications stated above. Nondeterministic functions: Nondeterministic functions result in different output each time they…
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Buffer Cache Hit Ratio
Hey guys, In this blog I am going to explain you about Buffer Cache Hit Ratio Buffer Cache Hit Ratio- It is a pool of memory pages into which data pages are read. In other words, the data pages which are read from Disk are stored in Memory (Cache) to provide data faster. When a Data Read…
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Page Life Expectancy (PLE) in SQL Server
Hey guys, In this blog I am going to explain you about Page Life Expectancy and How to monitor it. Page Life Expectancy (PLE)- Page Life Expectancy (PLE) is an age of a data page in seconds in the buffer cache or buffer memory after querying the tables with the loading data page into the buffer memory.…
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Memory Grants Pending
Hello there, everyone! I hope everything is going well for you. Today In this blog I am going to explain you about Memory Grants Pending and How to monitor it. Memory Grants Pending- The number of processes that are pending a workspace memory grant is known as Pending. Because they are unable to acquire adequate RAM while…
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Detach and Attach in SQL Server
Hello there, everyone! I hope everything is going well for you. Today, I’ll show you about Detach and Attach Detach SQL Server Database- A SQL Server database is made up of at least two files: a data file (mdf) and a log file (ldf), though there may be additional data files in some circumstances. Since…
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Fragmentation
Hey guys, In this blog I am going to explain you about Fragmentation and its types and how to detect fragmentation and fix it. SQL Server index fragmentation is a common source of database performance degradation. Fragmentation occurs when there is a lot of empty space on a data page (internal fragmentation) or when the logical…
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SQL Interview Questions
You can benefit from this article’s popular SQL Server DBA interview questions and answers. To learn more about SQL interview questions, I would advise you to read this post as well as the SQL Server Interview questions and answers. I made an effort to be very specific in my responses to each question in this…
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All about tempDB
Hey guys, In this blog I am going to explain you about TempDB TempDB is a workhorse of SQL Server performing a number of functions to support both system and internal operations. With this workload TempDB will process a large number of database writes, which requires low-latency, high throughput underlying storage. What about tempDB Size? It…
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PostgreSQL Index and Types
Hey guys, In this blog I am going to explain you about PostgreSQL Index and Types. PostgreSQL Index- The database search engine can use indexes, which are specialized lookup tables, to speed up data retrieval. An index is simply a pointer to information in a table. An index in a database resembles a book’s back…
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SQL Server’s in-memory OLTP technology
Hey guys, In this blog I am going to explain you about SQL Server’s in-memory OLTP technology. Introduction- A native stored procedure compiler and specialized, memory-optimized relational data management engine are both built into SQL Server as part of In-Memory OLTP. For the most demanding OLTP workloads, Microsoft created In-Memory OLTP. In many instances, the…
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SQL DBA Hand Book
Performance Monitoring Scan SQL Server Error Log Database Maintenance Missing Indexes in a DB Transaction Space Utilization Info SQL Server Statistics DB Backup and Restore History AAOG Log Sync Analysis Important SQL Server Scripts… Read a big file using PowerShell All about tempDB
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IO Subsystem Analysis
SQLIO.exe is a tool provided by Microsoft that can be used to determine the I/O capacity of a given configuration. Installation:-> Step 1. Configure Param.txt The first step is to modify the file param.txt to tell SQLIO where to find its test file which is named testfile.dat. Parameter Description Values file name Name of the test file R:\testfile.dat number…
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