CREATE TABLE table_3144 ("Result" CLOB, "Date" CLOB, "Race" CLOB, "Venue" CLOB, "Group" CLOB, "Distance" CLOB, "Weight" CLOB, "Jockey" CLOB, "Winner/2nd" CLOB)

What was the weight of the jockey at Sandown Park?
SELECT "Weight" FROM table_3144 WHERE "Venue" = 'Sandown Park'
SELECT "Weight" FROM "table_3144" WHERE "Venue" = 'Sandown Park'