This session is directed to you who have been using SQL left-handedly a year or so. You have learnt to write the basic queries, but there are still some gaps in your SQL knowledge, and overall SQL is a little confusing to you. This session aims at filling some of these gaps by covering a few titbits about SQL and give you some tips that will be useful to you. This includes really basic things as what GO really is and the traps you can run into with NULL values. You will also learn a little about data types and how you should use UNION. Finally, I will talk about CTEs, temp tables and table variables and you will get some ideas what to use when.