SQL DBA AlwaysOn scenario based interview questions – 3 One of the best known feature introduced in SQL Server 2012 is “AlwaysOn” which makes use of existing HA/DR features and provide additional features like Availability Groups. At the end of the 31st day of the month, a FREE PDF will be posted here which can be downloadable for offline review. This is the answer that lets the interviewer know how suitable are you for the position to which you are being interviewed. What is BCP? 38. DROP LOGIN login_name C. A login cannot be deleted but only disabled In 2008 or above this has changed, we would need to install separately on all the nodes. In this blog I am discussing the SQL Server Interview Questions answers on Database Mirroring. back up the database, Update Stats of Tables. What is the importance of a recovery model?Answer :Primarily, the recovery model is chosen keeping in view the amount of data loss one can afford to. Therefore the table can have only one clustered index. So, you, however, have a chance to move forward in your career in SQL Server Dba Development. Recursion can be defined as a method of problem-solving wherein the solution is arrived at by repetitively applying it to subsets of the problem. Primary Key has a unique constraint defined on the column and the value in the column cannot be NULL. “Partition By” and “Order By” can be used along with “ROW_NUMBER()”. It is an inner query which is referred by the outer query. Please visit this link for our video answers for SQL Server DBA Interview Questions. Which autogrowth database setting is good?Answer: Setting an autogrowth in multiples of MB is a better option than setting autogrowth in percentage (%). When setting Replication, is it possible to have a Publisher as 64 Bit SQL Server and Distributor or Subscribers as a 32 Bit SQL Server?Answer: Yes, it is possible to have various configurations in a Replication environment. You can change the stored procedure code without affecting clients. Want more interview questions? E.g. But in case of update statement is fired both Inserted and Deleted table used for records the Original row before updation get store in the Deleted table and new row Updated get store in Inserted table. Due to some maintenance being done, the SQL Server on a failover cluster needs to be brought down. What are the differences between Left join and Inner join in Sql Server?Answer: The left join will return all the rows from the left table and matching rows from the right table. You can nest stored procedures and managed code references up to 32 levels. According to research SQL Server, DBA has a market share of about 46%. Non-Clustered Index – Non-Clustered Index depends on the clustered index internally. A foreign key in one table points to a primary key in another table. DeNormalization – It is the process of accessing the data from higher to lower normalization forms. 5. Here is the top 50 objective standard model SQL Server Dba Interview questions and their answers are provided just underneath to them. 16. More on these Indexes later. Your role and responsibilities carried out in your earlier projects that would be of significance to the potential employer. “Left Join” and “Left Outer Join” are used interchangeably because records which are returned will be the same with either of these. Explain foreign key in Sql Server?Answer: Foreign key is used to establish a relationship between the columns of another table. What are the difference between “Where” and “Having” clause in Sql Server?Answer: “Where” clause is used to filter the rows based on condition. What are the operating modes in which Database Mirroring runs?Answer: Database Mirroring runs in 2 operating modes High-Safety Mode and High-Performance Mode. 25. In this article, we’ll look at SQL server DBA interview questions and example answers. Server agent’s goal is to achieve the jobs simply with the scheduler motor which provides our jobs to work at proposed date and time. What are Magic Tables in SQL Server?Answer: The MAGIC tables are automatically created and dropped, in case you use TRIGGERS. Which operator do you use to return all of the rows from one query except rows are returned in a second query?Answer: You use the EXCEPT operator to return all rows from one query except where duplicate rows are found in a second query. Correlated – It is not an independent subquery. There are loads of chances from various reputed corporations in the business. The database is upgraded from a previous version Q) Could you please some items which you may see in an execution plan indicating the query is not optimized. Explain Alternate key, Candidate Key and Composite Key in Sql Server?Answer: 34. Subscriber is the destination where the publisher’s data is copied/replicated. In what sequence SQL statement is processed?Answer: The clauses of the select are processed in the following sequence, 45. 22. 29. SQL DBA AlwaysOn scenario based interview questions – 3. 37. Using these rules complex information is broken down into its most simple structures (a table) where all of the individual atomic level elements relate to each other and satisfy the normalization rules. Also, TDE can protect the database backups of the instance on which TDE was setup. Table-Valued – This type of function are used for returning a table which has a list of rows. Today I am writing a Blog Series on one of my Favorite topic – SQL Server Cluster. If this option is turned on it will display a query execution plan in a separate window when the query is run again. Below is the list of collation sensitivities in sql server –. These are not physical tables but are Internal tables. 10. A. DELETE LOGIN login_name B. 3. Stored procedures help promote code reuse. Non-Clustered Index:- A Non-Clustered index is a special type of index in which the logical order of the index does not match the physical stored order of the rows in the disk. What are subquery and its properties?Answer: 37. According to analysis, SQL Server Dba has a business share of around 1.6%. 47. Are you preparing for your sql developer interview? What are the different types of Indexes available in SQL Server?Answer: The simplest answer to this is “Clustered and Non-Clustered Indexes”. What is Replication?Answer: Replication is a feature in SQL Server that helps us publish database objects and data and copy (replicate) it to one or more destinations. Top 50 sql server interview questions and answers pdf-2020. SQL Server Interview Questions And Answers For Experienced 2020. The query optimizer uses these indexes in determining whether to choose an index or not while executing a query. We have taken complete care to provide accurate answers to all the questions. 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