Friday, May 2, 2014

USING ALIASES


COLUMN ALIASES

Syntax:
     Select <orginal_col> <alias_name> from <table_name>;

Ex:
     SQL> select no sno from student;
or
     SQL> select no “sno” from student;

TABLE ALIASES

If you are using table aliases you can use dot method to the columns.

Syntax:
     Select <alias_name>.<col1>, <alias_name>.<col2> … <alias_name>.<coln> from
                                                       <table_name> <alias_name>;

Ex:

     SQL> select s.no, s.name from student s;

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