This function is used to return a non-null from more than one column in the arguments. SQL Server 2019 brings innovative security and compliance features, industry-leading performance, mission-critical availability, and advanced analytics to all your key data workloads, now with support for big data built-in. This scheduling of jobs benefits to decrease human interference throughout the night time and feed can be produced at an appropriate time. Relationships can be created to maintain the data in the table. If a large amount of data in an indexed column has been added, changed, or removed (that is if the distribution of key values has changed), or the table has been truncated using the TRUNCATE TABLE statement and then repopulated. Top 50 SQL Server Interview Questions & Answers . An Active-Active cluster is a failover cluster configured in a way that both the cluster nodes are active at any given point of time. Wildcards are used for data retrieval process from the table. Properties of the subquery can be defined as. According to analysis, SQL Server Dba has a business share of around 1.6%. What are a Scheduled Jobs or What is a Scheduled Tasks?Answer: Scheduled tasks let user automate processes that run on regular or predictable cycles. 34. A subquery must be put in the right hand of the comparison operator, and. 12. How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?Answer: The one-to-one relationship can be implemented as a single table and rarely as two tables with primary and foreign key relationships. Explain primary key in Sql Server?Answer: This is the combination of fields/columns which are used to uniquely specify a row. Note: each answer is just one of many possible ways to address the question, and you may come up with better answers than the provided ones. 47. The distributor is responsible for distributing the database objects to one or more destinations. The primary key constraints are used to enforce entity integrity. In which database state, the database is in single-user mode and may be repaired or restored. 48. What are user-defined functions (UDFs) in Sql Server?Answer: User-Defined functions are being used to handle complex queries. Stored procedures help promote code reuse. Sql Server Interview Questions and Answers. If you have worked only some version be honest in saying that, remember, no one would be working on all versions, it varies from individual to individual. Top 50 sql server interview questions and answers pdf-2020. 8. Then you have come to the right place. SQL Server Interview Questions And Answers For Experienced What is COALESCE in SQL Server?Answer: COALESCE is used to return the first non-null expression within the arguments. 49. At the end of the 31st day of the month, a FREE PDF will be posted here which can be downloadable for offline review. Clustering can be best described as a technology that automatically allows one physical server to take over the tasks and responsibilities of another physical server that has failed. 8. How do you generate file output from SQL?Answer: While using SQL Server Management Studio or Query Analyzer, we have an option in Menu BAR. A user can further order the jobs in which it allows to be produced. Which autogrowth database setting is good?Answer: Setting an autogrowth in multiples of MB is a better option than setting autogrowth in percentage (%). And if @@Recordcount is checked before the error-checking statement then @@Error would get reset. The publisher is the data source of a publication. 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. You might not see Video Answer link for some of them. 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