I am trying to export table from sqllite and import to postgresql db. but when I try to import into postgresql db it throws some delimiter issue. My table already created in postgresql database. I am following export policy from below link:
https://www.sqlitetutorial.net/sqlite-tutorial/sqlite-export-csv/
and got below error when import:
DELIMITER ',' CSV HEADER QUOTE '\"' ESCAPE '''';""
Any one please help
I had same issue, but i solved it in different way. Maybe this wont fit here but still u would like to try.
I first converter/transformed it to .cs file
Then I created table in postgresql database with same number of columns and same dtype as it was before
Then used i query like following :
COPY sports(playerid,name,age) from "<file location>\sports.csv" DELIMITER ',' CSV HEADER;
Like this all the columns in that table were imported in postgresql.
If this worked for you, your welcome! ;)
Related
I have a CSV file file.csv.
In Postgres, I have made a table named grants:
CREATE TABLE grants
(
)
WITH (
OIDS=FALSE
);
ALTER TABLE grants
OWNER TO postgres;
I want to import file.csv data without having to specify columns in Postgres.
But if I run COPY grants FROM '/PATH/TO/grants.csv' CSV HEADER;, I get this error: ERROR: extra data after last expected column.
How do I import the CSV data without having to specify columns and types?
The error is normal.
You created a table with no column. The COPY command try to import data into the table with the good structure.
So you have to create the table corresponding to your csv file before execute the COPY command.
I discovered pgfutter :
"Import CSV and JSON into PostgreSQL the easy way. This small tool abstract all the hassles and swearing you normally have to deal with when you just want to dump some data into the database"
Perhaps a solution ...
The best method for me was to convert the csv to dataframe and then follow
https://github.com/sp-anna-jones/data_science/wiki/Importing-pandas-dataframe-to-postgres
No, it is not possible using the COPY command
If a list of columns is specified, COPY will only copy the data in the
specified columns to or from the file. If there are any columns in the
table that are not in the column list, COPY FROM will insert the
default values for those columns.
COPY does not create columns for you.
How can import CSV file data into a Postgres table? And I have a multiple delimiter like , and ".
Kindly suggeste me, hope for reply.
Thanks
simple question I think but I can't seem to find the answer through Googling etc.
I am importing csv data into a postgresql table via psql. I can do this fine through the pgAdmin III GUI but am now using Codio Online IDE where it is all done through psql.
How can I import into the Postgresql table and skip the first 'id' auto incrementing column?
In pgAdmin it was as simple as unselecting the id column on the 'columns to import' tab.
So far I have in the SQL Query toolbox
COPY products FROM '/media/username/rails_projects/app/db/import/bdname_products.csv' DELIMITER ',' CSV;
Alternatively, is it possible to get an output on the SQL that PgAdmin III used after you execute an Import using the menu Import command?
Thank you for your consideration.
As explained in the manual, copy allows you to specify a field list to read, like this:
COPY table_name ( column_name , ... ) FROM 'filename'
I'm using PostgreSQL database, after I've created my table I have to populate them with a CSV file. However the CSV file is corrupted and it violates the primary key rule and so the database is throwing an error and I'm unable to populate the table. Any ideas how to tell the database to ignore the duplicates when importing from CSV? Writing a script to remove them from the CSV file is no acceptable. Any workarounds are welcome too. Thank you! : )
On postgreSQL, duplicate rows are not permitted if they violate a unique constraint.
I think that your best option, is to import your CSV file on to temp table that has no constraint, delete from it duplicate values, and finally import from this temp table to your final table.
Is there any plugin or library which I need to use for this?
I want to try this on my local system first and then do the same on Heroku Postgresql
pgAdmin has GUI for data import since 1.16. You have to create your table first and then you can import data easily - just right-click on the table name and click on Import.
assuming you have a SQL table called mydata - you can load data from a csv file as follows:
COPY MYDATA FROM '<PATH>/MYDATA.CSV' CSV HEADER;
For more details refer to: http://www.postgresql.org/docs/9.2/static/sql-copy.html
You may have a table called 'test'
COPY test(gid, "name", the_geom)
FROM '/home/data/sample.csv'
WITH DELIMITER ','
CSV HEADER