Reference column without table name during table join : Column Names « Select Query « Oracle PL / SQL

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Oracle PL / SQL » Select Query » Column Names 
Reference column without table name during table join
   


SQL> CREATE TABLE emp
  2  (
  3     cid                NUMBER,
  4     city              VARCHAR2(30),
  5     customer_state             VARCHAR2(40),
  6     country_id                 CHAR(2)
  7  );

Table created.

SQL>
SQL> CREATE TABLE sales(
  2    product_id                NUMBER(6),
  3    cid               NUMBER,
  4    sold             NUMBER(3),
  5    amount                    NUMBER(10,2),
  6    cost                      NUMBER(10,2)
  7  );

Table created.

SQL>
SQL> select product_id, sold, city, customer_state
  2  from   sales, emp
  3  where  sales.cid = emp.cid
  4  and    product_id = 117;

no rows selected

SQL>
SQL>
SQL> drop table emp;

Table dropped.

SQL> drop table sales;

Table dropped.

SQL>

   
    
    
  
Related examples in the same category
1. Insert string text between column names
2. Column Renaming
3. Column renaming for function
4. Combined columns and renaming
5. Use table name to reference column name
6. Use table name to reference the ambiguity column names
7. col columnName new_value BLAH
8. Reference column name from renamed table name
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