If you are using backup restore, then take a log backup on the source database after applications shutdown and apply it to your target database with recovery how to become a sql server dba mode. If you are using AOAG then you need to synchronize both replicas and then failover to the target system and same with other options as well.

sql dba interview questions

All they have is access to a view not knowing what tables actually exist in the database. Now, this column does not allow null values and duplicate values. You can try inserting values to violate these conditions and see what happens. This tutorial lists the top 50 SQL Server Interview questions and answers asked in SQL Server interviews, and includes SQL Server Q&A for freshers and experienced SQL developers. This question can help the interviewer assess your knowledge of database backup procedures. Your answer should include a specific time frame and an explanation of why this is important to maintain data security. SQL database administrators are in charge of the performance, security, and availability of the company’s SQL Server database.

SQL Server DBA Interview Questions

The benefits derived from triggers are based on their event-driven nature. Once created, the trigger automatically fires without user intervention based on an event in the database. Normalization is the process of organizing data into a related table.

sql dba interview questions

Read the detailed article in the attached link on this topic to learn its step-by-step process. The last step is to change the SQLDataRoot value given under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL13.MSSQLSERVER\Setup to the new path. Although SQL Server will be successful without performing this step, patches and cumulative updates will be failed if you will miss this registry change.

What purpose does the model database serve?

Have a look at the attached article to understand Index management in SQL Server. Only ASCII character data types are allowed in GET method while in POST method there is no restriction, it allows binary data also. The value type can contain null value while reference type can’t hold a null value. Accessing is faster in the value type on comparison to reference type.