* ERROR at line 1: ORA-06550: line 1, column 7: PLS-00221: 'GET_SAL' is not a procedure or is undefined ORA-06550: line 1, column 7: PL/SQL: Statement ignored 出现类这样的错误，是因为没有将返回赋给一个 ，因此 f you want to execute a functi
*PL/SQL: Statement ignored
出现类似这样的错误，是因为没有将返回值赋给一个值 ，因此
f you want to execute a function you have to collect the return value into a variable.
So you need to define a variable and execute function to return into the variable as below
and run it using the run Script option not the Run Statement option.
<code><span>variable ret varchar2</span><span>(</span><span>20</span><span>);</span><span>execute</span><span>:</span><span>ret</span><span>:=</span><span>check_login</span><span>(</span><span>dd</span><span>,</span><span>dd</span><span>);</span><span>select</span><span>:</span><span>ret </span><span>from</span><span> dual</span></code>
Or if you do it from plsql
<code><span>declare</span><span> v_ret varchar2</span><span>(</span><span>100</span><span>);</span><span>begin</span><span> v_ret</span><span>:=</span><span>check_login</span><span>(</span><span>a</span><span>,</span><span>b</span><span>);</span><span>end</span><span>;</span></code>
