Question

我想在批处理文件中调用pg_dump命令。首先我得到所有表名，然后循环每个表并执行pg_dump命令。它必须很可能类似的东西，但我得到一个错误“语法错误”：

for %%T in (psql -U postgres -w -d test_db -t -c "SELECT table_name FROM 
information_schema.tables WHERE table_schema='public' AND table_type='BASE TABLE'") 
do pg_dump -t %%T -U postgres test_db -w -f "C:\Users\mtuna\Documents\dumpfiles\%%T.sql" 
done; 

任何帮助，将不胜感激。

Answer 1

这里是一个解决方案：

@echo off 
SET TableListeFile=C:\Users\mtuna\Documents\dumpfiles\database_list.txt 

REM Saveing all tables name of database test_db on a temp file: database_list.txt 
psql -U postgres -d test_db -t -c "SELECT table_name FROM information_schema.tables WHERE table_schema='public' AND table_type='BASE TABLE'" -o "%TableListeFile%" 

REM Loop on liste tables name: 
FOR /F "tokens=*" %%I IN (%TableListeFile%) DO (
REM Dump each table on file 
pg_dump -U postgres -h localhost -t %%I test_db > "C:\Users\mtuna\Documents\dumpfiles\%%I.sql" 
) 
REM Delete temp file 
del /Q %TableListeFile% 

它会提示您为每个转储密码输入。如果你不想被承认，你可以使用Pgpass File。

希望有所帮助。

胡阿里。

Answer 2

备份：batch_file_backup.bat

@echo off 
SET PGPATH="E:\PostgreSQL\9.5\bin\pg_dump.exe" 
SET PGPASSWORD=admin 
%PGPATH% -h 127.0.0.1 -p 5432 -U postgres -F c -b -v -f C:\Users\Pukar\Downloads\backupfile\2017-04-04.backup database_name 

bat文件备份运行PHP代码：

$batchfile_path = "E:/xampp/htdocs/yig2016/ybase/main_app/bizlayer/protected/batch_file_backup.bat"; 
$WshShell  = new COM("WScript.Shell"); 
$exec   = $WshShell->Run($batchfile_path, 0, false); 

还原：batch_file_restore.bat

@echo off 
SET PGPATH="E:\PostgreSQL\9.5\bin\pg_restore.exe" 
SET PGPASSWORD=admin 
%PGPATH% -h 127.0.0.1 -p 5432 -U postgres -d database_name -v C:\Users\Pukar\Downloads\backupfile\2017-04-04.backup 

BAT文件恢复运行PHP代码：

$batchfile_path = 
E:/xampp/htdocs/yig2016/ybase/main_app/bizlayer/protected/batch_file_restore.bat"; 
$WshShell  = new COM("WScript.Shell"); 
$exec   = $WshShell->Run($batchfile_path, 0, false); 

参考文献：http://www.somelesson.blogspot.com/2017/04/postgresql-backup-and-restore.html