Too many validation on page

Question

Hello.
I have Apex 4.2.0.
On page I have 20 validation with error text with 1000 chars (English). All validations are in Notification.
So when they are firing together, I have error:
Error processing request.
ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06510: PL/SQL: необработанное исключение, определенное пользователем
Technical Info (only visible for developers)
is_internal_error: true
apex_error_code: APEX.UNHANDLED_ERROR
ora_sqlcode: -6502
ora_sqlerrm: ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06510: PL/SQL: необработанное исключение, определенное пользователем
error_backtrace:
ORA-06512: at "APEX_040200.WWV_FLOW_PAGE", line 1369
ORA-06512: at "APEX_040200.WWV_FLOW_PAGE", line 1743
ORA-06512: at "APEX_040200.WWV_FLOW_PAGE", line 1888
ORA-06512: at "APEX_040200.WWV_FLOW", line 6713
Is there some workaround to fix it, except to change validation to Inline with field?

Answer 1

If I'm correct your validations return a total of more than 3,950 characters.
I'm not sure it's the best way but this should work: Instead of returning the full message, your validation will return just a DIV tag with an ID and on page loads a javascript will inject your validation message inside the DIV tag if it exists.
For example, your first validation will return a DIV tag with "error_1" as ID
  return '<div id="error_1"></div>';
On page loads you needs to add this JS (works on Firefox):
if ($('#error_1').length ){
  $('#error_1').html('This is error 1!');
Repeat this for all your validations.
This is a quick example, it may be better to organize the JS code inside a function to keep stuff clean.
I hope it helps!
Fred