SQL SELECT examples


SELECT identity, name FROM Gene;

identity name
12 'Toll'
1 'Son of sevenless'
24 'OB'
11 'OB'


SELECT identity, name FROM Gene WHERE species='Homo sapiens';

identity name
24 'OB'


SELECT identity FROM Gene WHERE species='Drosophila melanogaster' AND name='Toll';

identity
12


SELECT MAX(seqlength) FROM Protein;

MAX(seqlength)
301


SELECT COUNT(*) FROM Protein WHERE species='Homo sapiens';

COUNT(*)
1


© 2001 Per Kraulis $Date: 2001/05/09 11:32:46 $