使用pgsql命令的o参数。

-o，——output=FILENAME将查询结果发送到文件(或|管道)

psql -d DatabaseName -U UserName -c "SELECT * FROM TABLE" -o /root/Desktop/file.txt

使用下面的查询将结果存储在CSV文件中

\copy (your query) to 'file path' csv header;

例子

\copy (select name,date_order from purchase_order) to '/home/ankit/Desktop/result.csv' cvs header;

希望这对你有所帮助。

如果你得到以下错误

ufgtoolspg=> COPY (SELECT foo, bar FROM baz) TO '/tmp/query.csv' (format csv, delimiter ';');
ERROR:  must be superuser to COPY to or from a file
HINT:  Anyone can COPY to stdout or from stdin. psql's \copy command also works for anyone.

你可以这样运行它:

psql somepsqllink_or_credentials -c "COPY (SELECT foo, bar FROM baz) TO STDOUT (format csv, delimiter ';')"  > baz.csv

使用pgsql命令的o参数。

-o，——output=FILENAME将查询结果发送到文件(或|管道)

psql -d DatabaseName -U UserName -c "SELECT * FROM TABLE" -o /root/Desktop/file.txt

docker方法

通过PSQL命令

 docker exec -i %containerid% psql -U %user% -c '\dt' > tables.txt

或从SQL文件查询

docker exec -i %containerid% psql -U %user% < file.sql > data.txt

COPY tablename TO '/tmp/output.csv' DELIMITER ',' CSV HEADER;

该命令用于将整个表存储为CSV格式