PostgreSQL/Array/Any Array — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
|
(нет различий)
|
Текущая версия на 10:14, 26 мая 2010
ANY function for array data type
postgres=#
postgres=# CREATE TABLE sal_emp (
postgres(# name text,
postgres(# pay_by_quarter integer[],
postgres(# schedule text[][]
postgres(# );
CREATE TABLE
postgres=#
postgres=# INSERT INTO sal_emp
postgres-# VALUES ("Bill",
postgres(# ARRAY[10000, 10000, 10000, 10000],
postgres(# ARRAY[["meeting", "lunch"], ["training", "presentation"]]);
INSERT 0 1
postgres=#
postgres=# INSERT INTO sal_emp
postgres-# VALUES ("Carol",
postgres(# ARRAY[20000, 25000, 25000, 25000],
postgres(# ARRAY[["breakfast", "consulting"], ["meeting", "lunch"]]);
INSERT 0 1
postgres=#
postgres=# SELECT * FROM sal_emp;
name | pay_by_quarter | schedule
-------+---------------------------+-------------------------------------------
Bill | {10000,10000,10000,10000} | {{meeting,lunch},{training,presentation}}
Carol | {20000,25000,25000,25000} | {{breakfast,consulting},{meeting,lunch}}
(2 rows)
postgres=#
postgres=#
postgres=# SELECT * FROM sal_emp WHERE 10000 = ANY (pay_by_quarter);
name | pay_by_quarter | schedule
------+---------------------------+-------------------------------------------
Bill | {10000,10000,10000,10000} | {{meeting,lunch},{training,presentation}}
(1 row)
postgres=#
postgres=# drop table sal_emp;
DROP TABLE
postgres=#
postgres=#