In SQL Server, missing indexes are indexes that the query optimizer has determined would improve query performance, but do not exist in the database. Identifying and creating missing indexes can improve query performance and help ensure that the database is running efficiently. To find missing indexes in SQL Server, the administrator can use the sys.dm_db_missing_index_details dynamic management view. This view …
To find the version of SQL Server that is being used, you can use the @@VERSION system function. This function returns a string that contains information about the version of SQL Server, the operating system, and other details. To use this function, you can run the following query: This query returns the version column, which contains the information returned by …
There are many different DBA (database administrator) interview questions that employers may ask to assess a candidate’s knowledge and skills. Some of the most common and popular DBA interview questions include: These questions are designed to assess a candidate’s knowledge of the core concepts and skills required for a DBA role. By asking these questions, employers can get a better …
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Errors 823, 834, and 825 are all related to I/O errors in SQL Server. These errors occur when SQL Server is unable to read or write data to the disk due to a hardware or software failure. Error 823 “I/O error (torn page) detected during read at offset,” indicates that SQL Server has detected a torn page on the disk. …
In SQL Server, the isolation level is a property that determines how transactions are isolated from each other, and how they access and modify data in the database. SQL Server supports four different isolation levels, which are: The isolation level can be set at the session level or the transaction level, and it can be changed using the SET TRANSACTION …
Out of all of the customers we have running our daily monitoring here are the versions of SQL Server that are being run. All the data is sanitized, so there is no private client information to expose here. What is this service? With this service we detect and alert you of any issues that arise on your SQL Server. Then …
Daily Server Monitoring – SQL Versions for January Read more »
Limited time offer, first 12 months for the price of 10 months when you sign up for a managed services package in January. Between now and the end of January sign up for our managed services offering and get 12 months for the price of 10. With monitoring several times a day, this service also includes: With 2 Levels of …
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Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends …
Error 701, “There is insufficient system memory to run this query,” is a common error message in SQL Server. This error indicates that the system does not have enough memory available to execute the query. There are several reasons why this error may occur, including: To address this error, you can try several different strategies, depending on the specific cause …
Error 701 There is insufficient system memory to run this query Read more »