http://sql-articles.com/scripts/disk-space-including-mounted-drive-check-via-sql-server/Hope this helps!Please remember to click "Mark as Answer" if my response answered your question or click "Vote as helpful" if it helped you in any way....
The table has about only 15K records and the db is a Azure Sql database. There's no missing indexes, no fragmentations, no blockings or deadlocks and we have also increased the DTU's. Recently we tried to delete just one record which took like 5mins and got completed. We have s...
I specially mention very well exampled part of this book “The impact of indexes on query performance” page no 154, this part provides a particularly good example of what is the need to including appropriate index, check the fragmentation and factors responsible for decision making of DBAs for...
Data Fragmentation: Google 内部的数据由于本身的特性不同,会被存储到不同的存储系统中。这样会导致一个应用程序依赖的数据可能横跨多个数据存储系统中,甚至以不同的文件格式。对于这个问题,F1 Query 对于这些数据提供一个统一的数据视图。 Datacenter Architecture: F1 Query 的目标是多数据中心,这个和传统的 shared ...
How do I size SQL Server for new project? Where to start, what to take into account? THX! When are you going to start adding your referenced links to the details section so i can copy and paste? <3 Should one still care about Index Fragmentation in the days of Azure VM Premium disks...
the result is already cached, nor does it cache the query result. (Due to a limitation in the parser, a space character must precede and follow theSQL_NO_CACHEkeyword; a nonspace such as a newline causes the server to check the query cache to see whether the result is already cached....
The issue is when I add in the left join to the RevisionDaily table. Without this the query runs in 2-3 seconds. Adding this table takes the execution time up to 20-30secs. Would be grateful for any suggestions on improving execution time. Thanks. (I'm using SQL Server 2019) Work ...
Number of free memory blocks in query cache Total number of queries =Qcache_inserts+Qcache_hits+Qcache_not_cached. The query cache uses variable-length blocks, soQcache_total_blocksandQcache_free_blocksmay indicate query cache memory fragmentation. AfterFLUSH QUERY CACHEonly a single (big) free ...
c. If the pages that SQL Server is most frequently waiting on are in Tempdb database ,check the wait resource column for a page number in dbid 2 Ex(2:1:1 or 1:1:2). Enable TF 1118 and increase the number of TEMPDB data files and size them equally (You may be facing tempdb l...
we present F1 Query, an SQL query engine that is unique not because of its focus on doing one thing well, but instead because it aims to cover all corners of the requirements space for enterprise data processing and analysis. F1 Query 旨在覆盖数据处理和分析的所有方面。F1 Query 在内部已经应...