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.
CHAR(5) is fixed length, right padded with spaces. VARCHAR(5) is fixed length, right padded with null. VARCHAR2(5) is variable length. Thus the difference between VARCHAR and VARCHAR2 is that VARCHAR is ANSI standard but takes up space whereas VARCHAR2 is Oracle-only but makes more efficient use of space.