![]() It does not require PostgreSQL superuser privileges.įor example, if you want to export all data of the persons table into persons_client. To use \copy command, you just need to have sufficient privileges to your local machine. However, instead of server writing the CSV file, psql writes the CSV file, transfers data from the server to your local file system. The \copy command basically runs the COPY statement above. In case you have the access to a remote PostgreSQL database server, but you don’t have sufficient privileges to write to a file on it, you can use the PostgreSQL built-in command \copy. To Generate a Dump file use the pgdump tool to create a dump file from a database/tables from a PostgreSQL database, pgdump dumps a database as a text file or to other formats. Output Format You can export tables in one of these formats: CSV, HTML, SQL, XML, XLS (Excel), or JSON. Export data from a table to CSV file using the \copy command Select the table node in the Databases tab tree, Open the Export Table dialog from the right-click menu, Select an Output Format, Output Destination, and Options, Click Export. psql destdb < onetable.pg But even if all youve got is a full dump of the source database, you can still restore that single table by simply extracting it out of the large dump first: pgrestore -data-only -table tablename fulldump.pg > onetable.pg before restoring it as shown above, using psql.The CSV file also needs to be writable by the user that PostgreSQL server runs as. Matching Columns and Data Types for an Existing Table. You can import data using the Import Table Data wizard. It means that the CSV file must reside on the database server machine, not your local machine. This feature is only available in the DbVisualizer Pro edition. CREATE TABLE tmppagecaches AS (SELECT FROM pagecaches LIMIT 1000) Export this table using pgdump as below. Notice that the CSV file name that you specify in the COPY command must be written directly by the server. The idea was simple: Create a table called tmppagecaches where pagecaches is the table that you want to copy using pgdump using the following SQL in psql, this gives you a lot of freedom on SELECTing just the rows you want. TO 'C:\tmp\persons_email_db.csv' DELIMITER ',' CSV Code language: SQL (Structured Query Language) ( sql ) ![]()
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