Re: Re-using Table Variable in Procedure

Thanks Florian and Serigo,

Actually my logic goes as below:

var1 = SELECT * FROM table1;

var2 = SELECT * FROM table2;

join1 = FULL JOIN between var1 and var2

-- hereon I do not need contents of var1 and var2

var3 = SELECT * FROM table3;

join2 = FULL OUTER JOIN between join1 and var3

-- hereon I do not need contents of var3 and join1

var4 = SELECT * FROM table4;

join3 = FULL OTHER JOIN between join2 and var4

-- hereon I do not need contents of var4 and join2

-- the above logic continues for 5 more such iterations.

Question: My concern is that since I cannot delete the variables, it will occupy the space in memory throughout the life time of execution. Each SELECT fetches approx 1million rows, so memory usage will be huge as I am not releasing memory from earlier used variables. Is there solution to this?