PostgreSQL/Table/File to Table — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
|
Текущая версия на 10:14, 26 мая 2010
Copies data from a system file into the publishers table
CREATE TABLE employee (
ID int,
name varchar(10),
salary real,
start_date date,
city varchar(10),
region char(1)
);
insert into employee (ID, name, salary, start_date, city, region)
values (1, "Jason", 40420, "02/01/94", "New York", "W");
insert into employee (ID, name, salary, start_date, city, region)
values (2, "Robert",14420, "01/02/95", "Vancouver","N");
insert into employee (ID, name, salary, start_date, city, region)
values (3, "Celia", 24020, "12/03/96", "Toronto", "W");
insert into employee (ID, name, salary, start_date, city, region)
values (4, "Linda", 40620, "11/04/97", "New York", "N");
insert into employee (ID, name, salary, start_date, city, region)
values (5, "David", 80026, "10/05/98", "Vancouver","W");
insert into employee (ID, name, salary, start_date, city, region)
values (6, "James", 70060, "09/06/99", "Toronto", "N");
insert into employee (ID, name, salary, start_date, city, region)
values (7, "Alison",90620, "08/07/00", "New York", "W");
insert into employee (ID, name, salary, start_date, city, region)
values (8, "Chris", 26020, "07/08/01", "Vancouver","N");
insert into employee (ID, name, salary, start_date, city, region)
values (9, "Mary", 60020, "06/09/02", "Toronto", "W");
select * from employee;
-- Copy the employees table to the emp_table file, using a pipe (|) as the field delimiter
COPY employee TO "c:\\employee_data" USING DELIMITERS "|";
-- Copies data from a system file into the publishers table:
COPY employee FROM "c:\\employee_data";
drop table employee;
Copying an ASCII file to data table
CREATE TABLE employee (
ID int,
name varchar(10)
);
select * from employee;
/*
file: subjects.sql
1,Joe
2,Alison
3,Jess
*/
-- Copying an ASCII file
COPY subjects FROM "c:\\subjects.sql"
USING DELIMITERS "," WITH NULL AS "\null";
drop table employee;