Mainframe, MVS and zOS Discussion

a NULL column in db2 is a column that does not contain data that' the reason that for NULLABLE columns two variables are needed an INDICATOR variable to tell if the column contains a value and the variable to contain the value since in IT every bit is significant a NULL content is pretty impossible...

Hi,

Can a host variable be NULL? I understand that the DB2 column can be NULL but can a host variable of COBOL, can a host variable be NULL? Please help.