What is the average annual salary for Field Superintendent-Construction? The annual salary for someone with the job title Field Superintendent-Construction may vary depending on a number of factors including industry, company size, location, years of experience and level of education.he annual salary for someone with the job title Field Superintendent-Construction may vary depending on a number of factors including industry, company size, location, years of experience and level of education.
The difference between Varchar and Varchar2 is both are variable length but only 2000 bytes of character of data can be store in varchar where as 4000 bytes of character of data can be store in varchar2.
varchar data can be of a specified maximum length of characters, for example, varchar(6) indicates that this data type can store a maximum of six characters; or it can be of the form varchar(max), which increases the maximum number of characters that can be stored by this data type to 2^31.