diff options
Diffstat (limited to 'src/algebra/alql.spad.pamphlet')
| -rw-r--r-- | src/algebra/alql.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/alql.spad.pamphlet b/src/algebra/alql.spad.pamphlet index edcae0c5..861ceefe 100644 --- a/src/algebra/alql.spad.pamphlet +++ b/src/algebra/alql.spad.pamphlet @@ -119,9 +119,9 @@ Database(S): Exports == Implementation where ++ elt(db,q) returns all elements of \axiom{db} which satisfy \axiom{q}. elt: (%,Symbol) -> DataList String ++ elt(db,s) returns the \axiom{s} field of each element of \axiom{db}. - _+: (%,%) -> % + +: (%,%) -> % ++ db1+db2 returns the merge of databases db1 and db2 - _-: (%,%) -> % + -: (%,%) -> % ++ db1-db2 returns the difference of databases db1 and db2 i.e. consisting ++ of elements in db1 but not in db2 display: % -> Void |