A stored procedure is a named group of SQL statements that have been previously created and stored in the server database. Stored procedures accept input parameters so that a single procedure can be used over the network by several clients using different input data. And when the procedure is ...
Linked Servers is a concept in SQL Server by which we can add other SQL Server to a Group and query both the SQL Server dbs using T-SQL Statements. With a linked server, you can create very clean, easy to follow, SQL statements that allow remote data to be retrieved, joined and combi...
3. You have got a request to execute a query which is an “Update” query. That update is updating 5 million rows, after an hour it’s still executing and you are getting lot of requests from report users that their things are getting slow down. What’s your action plan? 4. See I...
Real-World Scenarios: The questions and answers are based on actual SQL Server interview experiences, offering practical insights. Performance Optimization: Best practices for improving query performance and database scalability. Clear Explanations: Detailed explanations accompany each answer to deepen your ...
Scenario-Based SQL Interview Questions The Bottom Line Top SQL Interview Questions List for 2025 SQL is a common language for Structured Query Language, which is based on general English, whereas MySQL is a database management system. Structured Query Language is the main part of the relational ...
%programfiles%\Microsoft SQL Server\100\Setup Bootstrap\Log\<YYYYMMDD_HHMM>\ Detail.txt Detail.txt is generated for the main workflow such as install or upgrade, and provides the details of the execution. The logs in the file are generated based on the time when each action for the install...
have permission to query the view, while denied access to the rest of the base table. SQL INTERVIEW QUESTIONS AND ANSWERS 7 | P a g e Views can join and simplify multiple tables into a single virtual table Views can act as aggregated tables, where the database engine aggregates data (su...
Some of the tools/ways that help you troubleshooting performance problems are: SET SHOWPLAN_ALL ON, SET SHOWPLAN_TEXT ON, SET STATISTICS IO ON, SQL Server Profiler, Windows NT /2000 Performance monitor, Graphical execution plan in Query Analyzer. Download the white paper on performance tuning SQL...
Q. How you will avoid duplicating records in a query? A By using DISTINCT Q. What is difference between Rename and Alias? Rename is a permanent name given to a table or column whereas Alias is a temporary name given to a table or column which do not exist once the SQL statement is ...
When we execute a query and use theWHEREkeyword on a column that does not have an index, then the SQL Server has to do a full-table scan and check every row to find matches. This is a bad practice because it can be unpredictable in terms of execution time. Therefore this process may...