SQL Server Interview Questions


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WEBI Query Properties

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By using query properties, we can restrict the records to display in a report. Please check the options in query properties Max rows retrieved - Maximum number of rows of data that are displayed when a query is run. This is related with Sample Result set. For example, if you give 1000 rows in "Max rows retrieved" then 500 rows in "Sample Result Set" then you will get 500 rows only. Also it can be restricted based on the administrator security profile. Sample Result Set - It determine the Maximum number of queries returns. This restriction is applied in database level. Fixed - At each data refresh, query returns the same rows when Fixed option is marked. If not then on each data refresh, query returns different set of sampled rows Retrieve duplicate rows - In some cases, in database, the same data may be repeated over many rows. You can restrict those data using this option.
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WEBI Report–Object from this query

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By default, "Object from this query" option will be disabled when drag and drop the object in query filter.     How to enable "Object from this query" option?   It is easy to enable this. As you can see in the filter, by default "In list" option will be there, by changing the value from list to other values , "Object from this query" option will be enabled. 
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SSIS BULK INSERT–“fetch a row from OLE DB provider "BULK"…”

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I created a simple SSIS Package using “Bulk Insert Task”, here am trying to upload the data from text file into my database. I have configured everything and ready to go, while execute the package, the error was thrown “[Bulk Insert Task] Error: An error occurred with the following error message: "Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".The OLE DB provider "BULK" for linked server "(null)" reported an error. The provider did not give any information”. Then i checked the column delimiter and fixed the issue, If you are using comma separated value then use “Comma {,}” as column delimiter.
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