FOR i IN 1..10 LOOP * ERROR at line 2: ORA-06550: line 2, column 5: PLS-00103: Encountered the symbol "FOR" when expecting one of the following: := . ( @ % ; The symbol "(" was substituted for "FOR" to continue. ORA-06550: line 2, column 20: PLS-00103: Encountered the symbol "LOOP" when expecting one of the following: , * & - + / at mod remainder rem when while => <an exponent (**)> by index sequence || multiset

这是一个 PL/SQL 代码块，但是它存在语法错误。可能是因为你没有定义变量 i。你需要在代码块前声明变量 i，例如：

DECLARE
i NUMBER;
BEGIN
FOR i IN 1..10 LOOP
-- Your code here
END LOOP;
END;

请注意，你需要将“Your code here”替换为实际的代码。

相关问题

BEGIN FOR i IN 1..10 LOOP INSERT INTO SHIFT (ShiftID, StartTime, EndTime, StoreID, EmployeeID) VALUES (i, SYSDATE - DBMS_RANDOM.VALUE(1, 7), SYSDATE - DBMS_RANDOM.VALUE(0, 6), i, i); END LOOP; COMMIT; END; FOR i IN 1..10 LOOP * ERROR at line 2: ORA-06550: line 2, column 5: PLS-00103: Encountered the symbol "FOR" when expecting one of the following: := . ( @ % ; The symbol "(" was substituted for "FOR" to continue. ORA-06550: line 2, column 20: PLS-00103: Encountered the symbol "LOOP" when expecting one of the following: , * & - + / at mod remainder rem when while => <an exponent (**)> by index sequence || multiset

这段代码有两个问题：

1. 缺少一个语句块的结尾。你需要在第一段代码的最后加上 `END;` 来结束整个语句块。

2. 你不能在 PL/SQL 块外使用 `FOR` 循环。你需要将两个 `FOR` 循环放在一个 PL/SQL 块内，像这样：

BEGIN
  FOR i IN 1..10 LOOP
    INSERT INTO SHIFT (ShiftID, StartTime, EndTime, StoreID, EmployeeID)
    VALUES (i, SYSDATE - DBMS_RANDOM.VALUE(1, 7), SYSDATE - DBMS_RANDOM.VALUE(0, 6), i, i);
  END LOOP;
  
  FOR i IN 1..10 LOOP
    -- do something else
  END LOOP;
  
  COMMIT;
END;

grant execute on dbms_crypto to system; -- 第一个代码块 declare input_string VARCHAR2 (200) := 'Secret Message'; output_string VARCHAR2(2000); encrypted_raw RAW(2000); decrypted_raw RAW(2000); num_key_bytes NUMBER := 256/8; key_bytes_raw RAW(32); encryption_type PLS_INTEGER := DBMS_CRYPTO.ENCRYPT_AES256 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; begin DBMS_OUTPUT.PUT_LINE(input_string); key_bytes_raw := DBMS_CRYPTO.RANDOMBYTES(num_key_bytes); encrypted_raw := DBMS_CRYPTO.ENCRYPT(src => UTL_I18N.STRING_TO_RAW(input_string, 'AL32UTF8'), typ => encryption_type, key => key_bytes_raw); decrypted_raw := DBMS_CRYPTO.DECRYPT(src => encrypted_raw, typ => encryption_type, key => key_bytes_raw); output_string := UTL_I18N.RAW_TO_CHAR(decrypted_raw, 'AL32UTF8'); DBMS_OUTPUT.PUT_LINE(output_string); end; -- 第二个代码块 declare l_src_data varchar2(20); l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) := '0123456789123456'; l_encval raw(2000); cursor secret_cursor is select phonenumber from customer; begin open secret_cursor; loop fetch secret_cursor into l_src_data; exit when secret_cursor%notfound; l_encval := dbms_crypto.encrypt(src => utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); dbms_output.put_line(l_encval); end loop; close secret_cursor; end; -- 第三个代码块 declare l_src_data raw(100) := hextoraw('190248129038903853275ijdkvjkad'); l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5; l_key varchar2(20) := '0123456789123456'; l_decval raw(200); begin l_decval := dbms_crypto.decrypt(src => l_src_data, typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8')); end; -- SQL 查询语句 SELECT Price FROM PRODUCT WHERE ProductID = 5;declare * ERROR at line 18: ORA-06550: line 18, column 1: PLS-00103: Encountered the symbol "DECLARE"报错

这个报错是因为你在最后的 SQL 查询语句前面加了一个 DECLARE 关键字，导致 PL/SQL 解释器无法理解这个语句。请将这个 DECLARE 关键字删除，只保留 SQL 查询语句即可。以下是修正后的代码：

grant execute on dbms_crypto to system;

-- 第一个代码块
declare
  input_string       VARCHAR2 (200) := 'Secret Message';
  output_string      VARCHAR2(2000);
  encrypted_raw      RAW(2000);
  decrypted_raw      RAW(2000);
  num_key_bytes      NUMBER := 256/8;
  key_bytes_raw      RAW(32);
  encryption_type    PLS_INTEGER := DBMS_CRYPTO.ENCRYPT_AES256 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5;
begin
  DBMS_OUTPUT.PUT_LINE(input_string);
  key_bytes_raw := DBMS_CRYPTO.RANDOMBYTES(num_key_bytes);
  encrypted_raw := DBMS_CRYPTO.ENCRYPT(src => UTL_I18N.STRING_TO_RAW(input_string, 'AL32UTF8'), typ => encryption_type, key => key_bytes_raw);
  decrypted_raw := DBMS_CRYPTO.DECRYPT(src => encrypted_raw, typ => encryption_type, key => key_bytes_raw);
  output_string := UTL_I18N.RAW_TO_CHAR(decrypted_raw, 'AL32UTF8');
  DBMS_OUTPUT.PUT_LINE(output_string);
end;

-- 第二个代码块
declare
  l_src_data varchar2(20);
  l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5;
  l_key varchar2(20) := '0123456789123456';
  l_encval raw(2000);
  cursor secret_cursor is select phonenumber from customer;
begin
  open secret_cursor;
  loop
    fetch secret_cursor into l_src_data;
    exit when secret_cursor%notfound;
    l_encval := dbms_crypto.encrypt(src => utl_i18n.string_to_raw(l_src_data,'AL32UTF8'), typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8'));
    dbms_output.put_line(l_encval);
  end loop;
  close secret_cursor;
end;

-- 第三个代码块
declare
  l_src_data raw(100) := hextoraw('190248129038903853275ijdkvjkad');
  l_type pls_integer := DBMS_CRYPTO.ENCRYPT_AES128 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5;
  l_key varchar2(20) := '0123456789123456';
  l_decval raw(200);
begin
  l_decval := dbms_crypto.decrypt(src => l_src_data, typ => l_type, key => utl_i18n.string_to_raw(l_key,'AL32UTF8'));
end;

-- SQL 查询语句
SELECT Price FROM PRODUCT WHERE ProductID = 5;

这样代码就可以正确执行了。