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okay so in this video lets try to answer a very frequently Asked SQL interview problem that is you are given two different tables with some data and you are asked to find the number of records that will be returned by using different type of joints on these two tables that is inner join left join right join and full outer join now the tricky part is that the data that is present in these two tables is having some duplicate values it might have some null values Etc and also you are not allowed to query the data you just need to look at these two table data and figure out the number of records that will be returned when you do these type of joints now in order to correctly answer this particular question you need to completely understand how internally SQL does different type of joints and that is exactly what I will be explaining in this video and Im going to explain that by taking up two different data sets so lets start with scenario one as you can see I have been given two differe