我有一个PL/SQL过程代码,它在/
时运行,但在执行时不运行。该错误消息我得到的是PLS-00201:必须声明标识符
SQL> EXECUTE MAXINUM;
BEGIN MAXINUM; END;
*
ERROR at line 1:
ORA-06550: line 1, column 7:
PLS-00201: identifier 'MAXINUM' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
这我工作的代码是:
DECLARE
N NUMBER;
M NUMBER;
O NUMBER;
P NUMBER;
X NUMBER;
PROCEDURE MAXINUM(N IN NUMBER, M IN NUMBER, O IN NUMBER, P IN NUMBER, X OUT NUMBER) IS
BEGIN
IF N>M AND N>O AND N>P THEN
X:=N;
ELSIF M>N AND M>O AND M>P THEN
X:=M;
ELSIF O>N AND O>M AND O>P THEN
X:=O;
ELSIF P>N AND P>M AND P>O THEN
X:=P;
END IF;
END;
BEGIN
N:=&NUMBER;
M:=&NUMBER;
O:=&NUMBER;
P:=&NUMBER;
MAXINUM(N,M,O,P,X);
DBMS_OUTPUT.PUT_LINE('HIGHEST NUMBER = '||X);
END;
/
当它给“标识错误”,我试图下探此过程中,我得到了错误:
SQL> DROP PROCEDURE MAXINUM;
DROP PROCEDURE MAXINUM
*
ERROR at line 1:
ORA-04043: object MAXINUM does not exist
我至今读this,this,this解决方案和其他解决方案有些什么与此相关的错误。
为了记录,这是[Oracle的内建函数'maxim()']的一个半熟的实现(http://docs.oracle.com/database/121/SQLRF/functions078.htm#SQLRF00645 ) – APC