Обсуждение: Re: Exporting Data
guilherme wrote > I need to get some information in database and export it. > > Is there a way to make PostgreSQL to export one data line to a new file? > Like this: > 1 FIRST LINE --> line1.txt; > 2 SECOND LINE --> line2.txt; > 3 THIRD LINE --> line3.txt > ... > and so... > > I know that I can import all information into a unique file, but I need to > split that information into severel files. > I've already searched in everything and didn't find a solution. > > Can anybody help? > > Thanks in advance. I doubt it. You should export to a single file then use another tool to perform the split. What platform and you working on? If its Linux using "psql | some_splitting_command" should be doable. I guess you put your query into a function and use procedural language functionality to do that but I'm not sure on the necessary syntax. There may be third-party ETL tools that fulfill this need as well. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Exporting-Data-tp5760108p5760118.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
On 06/20/2013 06:06 AM, David Johnston wrote: > guilherme wrote >> I need to get some information in database and export it. >> >> Is there a way to make PostgreSQL to export one data line to a new file? >> Like this: >> 1 FIRST LINE --> line1.txt; >> 2 SECOND LINE --> line2.txt; >> 3 THIRD LINE --> line3.txt >> ... >> and so... >> >> I know that I can import all information into a unique file, but I need to >> split that information into severel files. >> I've already searched in everything and didn't find a solution. >> >> Can anybody help? >> >> Thanks in advance. > > I doubt it. You should export to a single file then use another tool to > perform the split. What platform and you working on? If its Linux using > "psql | some_splitting_command" should be doable. > > I guess you put your query into a function and use procedural language > functionality to do that but I'm not sure on the necessary syntax. > > There may be third-party ETL tools that fulfill this need as well. One I recently ran across is Dataset: https://github.com/pudo/dataset Docs: https://dataset.readthedocs.org/en/latest/ In particular freezefile: https://dataset.readthedocs.org/en/latest/freezefile.html "mode specifies whether the query output is to be combined into a single file (list) or whether a file should be generated for each result row (item)." > > David J. > -- Adrian Klaver adrian.klaver@gmail.com