Thread: How to Create Table from CSV
I would like to create a table from a CSV file (the first line is
headers which I want to use as column names) saved from Excel. I have
a new database which I have been able to create tables from a
tutorial. But I haven’t been able to produce this new table. The
following are my attempts:
CREATE TABLE Equpment_List_Sheet2 FROM 'Equipment List, reference
r1_Sheet2.csv' WITH DELIMITER ',' NULL '' CSV HEADER;
ERROR: syntax error at or near "FROM"
LINE 1: CREATE TABLE Equpment_List_Sheet2 FROM 'Equipment List,
refe...
^
********** Error **********
ERROR: syntax error at or near "FROM"
SQL state: 42601
Character: 35
____________
copy TABLE Equpment_List_Sheet2 FROM 'Equipment List, reference
r1_Sheet2.csv' WITH DELIMITER ',' NULL '' CSV HEADER;
ERROR: syntax error at or near "TABLE"
LINE 1: copy TABLE Equpment_List_Sheet2 FROM 'Equipment List,
refere...
^
********** Error **********
ERROR: syntax error at or near "TABLE"
SQL state: 42601
Character: 6
______________
copy Equpment_List_Sheet2 FROM 'Equipment List, reference
r1_Sheet2.csv' WITH DELIMITER ',' NULL '' CSV HEADER;
ERROR: relation "equpment_list_sheet2" does not exist
********** Error **********
ERROR: relation "equpment_list_sheet2" does not exist
SQL state: 42P01
_______________
Thanks for any help,
ray
On Mar 7, 2011, at 12:13 AM, ray wrote: > > CREATE TABLE Equpment_List_Sheet2 FROM 'Equipment List, reference > r1_Sheet2.csv' WITH DELIMITER ',' NULL '' CSV HEADER; > ERROR: syntax error at or near "FROM" > LINE 1: CREATE TABLE Equpment_List_Sheet2 FROM 'Equipment List, > refe... > > ^ > ********** Error ********** > ERROR: syntax error at or near "FROM" > SQL state: 42601 > Character: 35 > ____________ > copy TABLE Equpment_List_Sheet2 FROM 'Equipment List, reference > r1_Sheet2.csv' WITH DELIMITER ',' NULL '' CSV HEADER; > ERROR: syntax error at or near "TABLE" > LINE 1: copy TABLE Equpment_List_Sheet2 FROM 'Equipment List, > refere... > ^ > ********** Error ********** > ERROR: syntax error at or near "TABLE" > SQL state: 42601 > Character: 6 You can't create a table using CSV. However try following: 1. Create structure of table (Parse the column using some script or manually) 2. Import data using COPY Command. Thanks & Regards, Vibhor Kumar EnterpriseDB Corporation The Enterprise PostgreSQL Company vibhor.kumar@enterprisedb.com Blog:http://vibhork.blogspot.com
On Sun, 6 Mar 2011, ray wrote:
> I would like to create a table from a CSV file (the first line is
> headers which I want to use as column names) saved from Excel. I have
> a new database which I have been able to create tables from a
> tutorial. But I haven?t been able to produce this new table. The
> following are my attempts:
As mentioned, write the table structure to a file using the postgres DDL.
That is, 'CREATE TABLE <name> (
column1...
);'
Then using psql you can '\copy to <tablename> from <filename> with delimiter
as ',' null as '' CSV' (without the quotes and with appropriate delimiter
and null values. The backslash is needed to make it work.
Rich
ray <ray@aarden.us> writes: > I would like to create a table from a CSV file (the first line is > headers which I want to use as column names) saved from Excel. I have You have to manually create the table and its columns, as other said. The tricky part that is hard (or impossible) to automate is deciding which data type to use for each column. Once you've done that, actually importing the data is a matter of using the COPY command or the pgloader tool. In PostgreSQL 9.1 you will be able to use CREATE FOREIGN TABLE to achieve that in one step, see: CREATE FOREIGN TABLE http://developer.postgresql.org/pgdocs/postgres/ddl-foreign-data.html http://developer.postgresql.org/pgdocs/postgres/sql-createforeigndatawrapper.html http://developer.postgresql.org/pgdocs/postgres/file-fdw.html Regards, -- Dimitri Fontaine http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
I appreciate all the information Thank you, ray -----Original Message----- From: Dimitri Fontaine [mailto:dimitri@2ndQuadrant.fr] Sent: Sunday, March 06, 2011 3:19 PM To: ray Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] How to Create Table from CSV ray <ray@aarden.us> writes: > I would like to create a table from a CSV file (the first line is > headers which I want to use as column names) saved from Excel. I have You have to manually create the table and its columns, as other said. The tricky part that is hard (or impossible) to automate is deciding which data type to use for each column. Once you've done that, actually importing the data is a matter of using the COPY command or the pgloader tool. In PostgreSQL 9.1 you will be able to use CREATE FOREIGN TABLE to achieve that in one step, see: CREATE FOREIGN TABLE http://developer.postgresql.org/pgdocs/postgres/ddl-foreign-data.html http://developer.postgresql.org/pgdocs/postgres/sql-createforeigndatawrapper .html http://developer.postgresql.org/pgdocs/postgres/file-fdw.html Regards, -- Dimitri Fontaine http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support