By SQLRx Admin | SQL Server , Tip of the Month
Available in all Editions of SQL Server 2014 CONNECT ANY DATABASE : Using this permission you can allow a login to connect to any database (existing or future) without having to configure connect privileges on every database. GRANT CONNECT ANY DATABASE TO sqlrx GO IMPERSONATE ANY LOGIN : This allows a login to impersonate […]
Continue readingBy Lori Brown | Miscellaneous , SQL Administration , SQL Maintenance , SQL Server
— By Lori Brown @SQLSupahStah I recently received a panicked call from a client who had a SQL instance go down because the server’s C drive was full. As the guy looked he found that the msdb database file was 31 GB and was consuming all of the free space on the OS drive causing […]
Continue readingBy Lori Brown | Miscellaneous , SQL Administration , SQL Server
— By Lori Brown @SQLSupahStah I recently was tasked with finding out how implementing TDE on a database along with encrypting several columns in a heavily used table was going to affect application code and query performance. Here are the steps I took to implement TDE encryption along with some query run statistics. I also […]
Continue readingBy Lori Brown | Miscellaneous , SQL Administration , SQL Server
Available in SQL 2012 & 2014 Enterprise Edition ColumnStore Indexes were introduced in SQL 2012 and are designed to improve performance in data warehouses. These indexes are good for batch processing and read only queries that use large data sets. Tables that are bulk loaded are good candidates. ColumnStore Indexes stores data in a columnar […]
Continue readingBy Lori Brown | SQL Server
Available in SQL 2014 Enterprise Edition since only used for partitioned indexes Statistics are VERY important to the SQL database engine and are what helps the optimizer make good execution plans. So, maintaining statistics is a super important part of any DBA’s job. In the past updating statistics on large tables can be very resource […]
Continue readingBy Lori Brown | Helpful Scripts , Miscellaneous , Performance Tuning , SQL Server , Tip of the Month
There are two new system views and two system views that have new columns added in SQL 2014. Most notable is sys.databases since this is widely used. sys.xml_indexes – Has 3 new columns: xml_index_type, xml_index_type_description, and path_id. https://msdn.microsoft.com/en-us/library/ms176003.aspx sys.databases – Has 3 new columns: is_auto_create_stats_incremental_on, is_query_store_on, and resource_pool_id. https://msdn.microsoft.com/en-us/library/ms178534.aspx sys.column_store_row_groups – New view. Provides clustered […]
Continue readingBy Lori Brown | Miscellaneous , SQL Administration , SQL Server
Available in SQL Server 2014 – All Editions Delayed Durabilty is a way to defer the acknowledgement of the transaction log records getting written to disk, i.e. transactions can continue without waiting, and SQL will assume that the log record *will* be written. You may know the ACID rules (Atomicity, Consistency, Isolation, Durability) that guarantee […]
Continue readingBy Lori Brown | SQL Administration , SQL Server
Available in SQL Server 2014 Enterprise Edition In-Memory OLTP is a new lock-free, latch-free, optimistic concurrency approach to storing data in memory. While it may seem reminiscent of DBCC PINTABLE is it definitely not the same since data in memory-optimized tables is not organized in pages, and does not use the Buffer Pool. It is […]
Continue readingBy Ginger Daniel | Performance Tuning , SQL Administration , SQL Server , Windows
Recently, a client of mine contacted me in a panic because almost all of the memory on the SQL server was used up…according to Task Manager, that is. Don’t panic…task manager is probably lying. Well, a little bit anyway. And Task Manager is just that, a task manager. If you are looking at it to […]
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