when i use percona command i found below error:

[COLOR=#373E4D]when I use below percona command , at that time I found error. Can you please tell me…………….
pt-online-schema-change D= dmbdemo_dmbdemo, t=test --execute --alter ‘add column x int’
Errors in command-line arguments: * Specify only one DSN on the command line


Hi chintudrana;

Try removing the space after D=.