PLS-00103错误，代码中有什么问题

Question

CREATE OR REPLACE PROCEDURE proc2_del_rows
        (v_tname        VARCHAR2,
         v_condition    VARCHAR2 DEFAULT NULL)
AS
        sql_stmt        VARCHAR2(500);
        where_clause    VARCHAR2(200) := 'WHERE'||' '||v_condition;
BEGIN
        IF v_condition IS NULL THEN
            where_clause := NULL;
        END IF;

        sql_stmt := 'DELETE FROM :1'||' '||where_clause;

        EXECUTE IMMEDIATE sql_stmt USING v_tname;
        COMMIT;
END;
/

Answer 1

CREATE or replace PROCEDURE proc2_del_rows
        (v_tname        VARCHAR2,
         v_condition    VARCHAR2 DEFAULT NULL)
AS
        sql_stmt        VARCHAR2(500);
        where_clause    VARCHAR2(200) := 'WHERE'||' '||v_condition;
BEGIN
        IF v_condition IS NULL THEN
            where_clause := NULL;
        END IF;

        sql_stmt := 'DELETE FROM '||v_tname||' '||where_clause;

        EXECUTE IMMEDIATE sql_stmt;

END;
/

Answer 2

要在字符串文字中包含单引号字符，您需要将单引号加倍，例如proc2_del_rows('EMP', 'JOB=''CLERK''')。

Documentation here

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