Postgresql Auto backup using powershell and task scheduler - postgresql

Question

I am running attached script to backup postgresql database by using task scheduler. Script is executed successfully but backup is not happening. Same script i have run on powershell and it's working fine.enter image description here
I want to schedule daily backup on windows server. Please help me or suggest any alternative to automate the backup.
Regards
Sadam

Answer 1

Try this script, it will create a backup file with a name consisting of a timestamp:
First, create a backup.bat file and just run it (set your credentials and database name):
echo off
echo 'Generate backup file name'
set CUR_YYYY=%date:~10,4%
set CUR_MM=%date:~4,2%
set CUR_DD=%date:~7,2%
set CUR_HH=%time:~0,2%
if %CUR_HH% lss 10 (set CUR_HH=0%time:~1,1%)
set CUR_NN=%time:~3,2%
set CUR_SS=%time:~6,2%
set BACKUP_FILE=%CUR_YYYY%-%CUR_MM%-%CUR_DD%_%CUR_HH%-%CUR_NN%-%CUR_SS%.custom.backup
echo 'Backup path: %BACKUP_FILE%'
echo 'Creating a backup ...'
set PGPASSWORD=strongpas
pg_dump.exe --username="postgres" -d AdventureWorks --format=custom -f "%BACKUP_FILE%"
echo 'Backup successfully created: %BACKUP_FILE%'
As a result, you should see such a picture, and a file with the extension .custom.backup should appear in the directory
If you get an error that the executable file "pg_dump.exe" was not found, then specify the full path to this file, something like "C:\Program Files\PostgreSQL\12\bin\pg_dump.exe", or add a directory with binaries PostgreSQL to environment variables (more details here)
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To schedule regular execution, you can use the windows task scheduler
Press win + r and enter taskschd.msc
Select Create Basic Task
Then follow the steps of the wizard, specify the schedule, and in the "Action" section, specify "Start a program" and then the path to the backup.bat file
To check that everything is correct, find the task in the list and select Run
You can read more about Postgresql backups on Windows here