SQL and MSBI Developer
SQL and MSBI Developer Interview Questions and Answers
Q1. how can you segregate data from one file to many file based on data value of a particular column.
Use SQL queries to filter data based on a particular column value and export to separate files.
Use SELECT statement with WHERE clause to filter data based on the particular column value
Use INSERT INTO statement to insert the filtered data into separate tables or files
Consider using a loop or cursor to iterate through the data and export to multiple files
Q2. How to delete data if there is no primary key while there are repeated data sets
You can delete data without a primary key by using a combination of columns to identify and remove duplicate records.
Identify unique combination of columns to differentiate between duplicate records
Use the identified columns in a DELETE statement to remove duplicate records
Consider using temporary tables or CTEs to handle the deletion process efficiently
Q3. how to access multiple data file place in same directory.
To access multiple data files in the same directory, use a wildcard character (*) in the file path.
Use a wildcard character (*) in the file path to access all files in the directory.
For example, to access all CSV files in a directory, use 'SELECT * FROM folder_path/*.csv'.
Make sure the SQL query or MSBI package is configured to handle multiple files.
Q4. How is SSIS related to SQL Server?
SSIS is a tool provided by Microsoft for data integration and workflow applications.
SSIS (SQL Server Integration Services) is a component of SQL Server used for building data integration and workflow applications.
It allows users to create packages to extract, transform, and load data from various sources into SQL Server databases.
SSIS can be used for tasks such as data migration, data warehousing, and ETL (Extract, Transform, Load) processes.
It provides a graphical interface ...read more
Q5. What are the tools associated with SSIS?
SSIS tools include SQL Server Data Tools, SQL Server Management Studio, BIDS, and DTS Designer.
SQL Server Data Tools (SSDT) - used for building SSIS packages
SQL Server Management Studio (SSMS) - used for managing and deploying SSIS packages
Business Intelligence Development Studio (BIDS) - used for creating SSIS projects
DTS Designer - used for designing Data Transformation Services packages
Q6. What is MSBI? What are tool
MSBI stands for Microsoft Business Intelligence. It is a suite of tools used for data integration, analysis, and reporting.
MSBI includes tools like SQL Server Integration Services (SSIS) for data integration, SQL Server Analysis Services (SSAS) for data analysis, and SQL Server Reporting Services (SSRS) for reporting.
SSIS is used for ETL (Extract, Transform, Load) processes to move data between systems.
SSAS is used for creating and managing multidimensional data models for an...read more
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Q7. Define power bi and its feature
Power BI is a business analytics tool by Microsoft that provides interactive visualizations and business intelligence capabilities.
Power BI allows users to create reports and dashboards using data from various sources.
It offers features like data visualization, data modeling, and data manipulation.
Users can share and collaborate on reports with others, and access them on multiple devices.
Power BI integrates with other Microsoft products like Excel, Azure, and SQL Server.
It su...read more
Q8. Difference between truncate and delete
Truncate is a DDL command that removes all rows from a table, while delete is a DML command that removes specific rows.
Truncate is faster than delete as it does not log individual row deletions.
Truncate resets identity columns, while delete does not.
Truncate cannot be rolled back, while delete can be rolled back using a transaction.
Truncate does not fire triggers, while delete does.
Truncate is used to quickly remove all rows from a table, while delete is used to remove specif...read more
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