G
Guest
I have a table with 2 columns.
ColumnA ColumnB
apple fruit
ball
cat animal
dog animal
egg
fox animal
What should be my SQL query, if the output that I want are only the rows
with existing values in ColumnB, like this:
ColumnA ColumnB
apple fruit
cat animal
dog animal
fox animal
ColumnA ColumnB
apple fruit
ball
cat animal
dog animal
egg
fox animal
What should be my SQL query, if the output that I want are only the rows
with existing values in ColumnB, like this:
ColumnA ColumnB
apple fruit
cat animal
dog animal
fox animal