how to use flow variable


how to use flow variable? I can't comprehend the style of it,by the way, when can Iuse that red point (flow variable)?

thanks your answer!!


you can use variables in many ways. If you want to understand how it works, they are in a way values without tables. You pass them from node to nodes with the red lins you talked about. To begin and make it more clear with I recommend you :

put the values of a table in variables :

table row to variable

table column to variable

put the variables values in tables :

variable to table column

variable to table row

For example, you want to put in a math formula the max of a numeric column and use this max value many times in other nodes. Without variables you have to calculate it with a group by and do cross joins to put it in your tables to make it available for each row of each table in which you want to use it as a column. Instead of it you calculate it with a group by and put it in a variable a pass this max value through nodes with the red links.

Take a look at the marvelous quick forms to inject variables in your workflow too.

Best regards,




thank you! and my database can not work,what can I do?