如果我在Oracle中運行我的查詢它運行沒有任何錯誤，但是當我在C＃中運行它給出ORA-00911：無效字符

Question

using (OracleConnection conn1 = new OracleConnection(oradb1)) 
         { 

          conn1.Open(); 

     using (OracleCommand crtCommand = new OracleCommand("WITH src 
    AS (SELECT src.table_name    src_table_name, 
       src.column_name    src_col_name, 
       src.data_type     src_data_type, 
       src.data_length    src_data_len, 
       src.data_precision   src_data_precision, 
       src.data_scale    src_data_scale, 
       src.nullable     src_nullable, 
       Decode(T.constraint_type, 'P', 'Primary Key', 
              'U', 'Unique', 
              '') AS src_cons 
     FROM all_tab_columns src 
       left join (SELECT Cc.column_name, 
            Uc.constraint_type 
          FROM user_cons_columns cc, 
            user_constraints uc 
          WHERE Cc.constraint_name = Uc.constraint_name 
            AND Cc.table_name = Uc.table_name) t 
         ON T.column_name = Src.column_name 
     WHERE table_name = 'INSTRUCTOR' 
       AND owner = 'ERHAN'), 
    tgt 
    AS (SELECT tgt.table_name    tgt_table_name, 
       tgt.column_name    tgt_col_name, 
       tgt.data_type     tgt_data_type, 
       tgt.data_length    tgt_data_len, 
       tgt.data_precision   tgt_data_precision, 
       tgt.data_scale    tgt_data_scale, 
       tgt.nullable     tgt_nullable, 
       Decode(T.constraint_type, 'P', 'Primary Key', 
              'U', 'Unique', 
              '') AS tgt_cons 
     FROM all_tab_columns tgt 
       left join (SELECT Cc.column_name, 
            Uc.constraint_type 
          FROM user_cons_columns cc, 
            user_constraints uc 
          WHERE Cc.constraint_name = Uc.constraint_name 
            AND Cc.table_name = Uc.table_name) t 
         ON T.column_name = tgt.column_name 
     WHERE table_name = 'INSTRUCTOR' 
       AND owner = 'SARIGUL'), 
    col_details 
    AS (SELECT src.src_table_name, 
       Nvl(tgt.tgt_table_name, First_value(tgt_table_name) 
              over( 
              ORDER BY tgt_table_name nulls last)) 
        tgt_table_name, 
       src.src_col_name, 
       src.src_data_type, 
       src.src_data_len, 
       src.src_data_precision, 
       src.src_data_scale, 
       src.src_nullable, 
       src_cons, 
       tgt.tgt_col_name, 
       tgt.tgt_data_type, 
       tgt.tgt_data_len, 
       tgt.tgt_data_precision, 
       tgt.tgt_data_scale, 
       tgt.tgt_nullable, 
       tgt_cons 
     FROM src 
       full outer join tgt 
          ON (src.src_col_name = tgt.tgt_col_name)) 
SELECT * 
FROM (SELECT CASE 
       WHEN tgt_data_type != src_data_type 
         OR tgt_data_len != src_data_len 
         OR tgt_data_precision != src_data_precision 
         OR tgt_data_scale != src_data_scale 
         OR tgt_nullable != src_nullable THEN 
       'alter table ' 
       || tgt_table_name 
       || ' modify ' 
       || tgt_col_name 
       || ' ' 
       || src_data_type 
       || ' ' 
       || CASE 
         WHEN src_data_type IN 
          ('DATE' 
          ) THEN NULL 
         ELSE 
         CASE 
          WHEN src_data_type 
           IN ( 
           'VARCHAR', 
           'VARCHAR2' 
           ) THEN ' (' 
             || 
       Nvl(To_char(src_data_len), ' ') 
                     || ') ' 
       ELSE Decode(Nvl(src_data_precision, -1), -1, NULL, 
         Nvl(To_char(src_data_precision), ' ') 
         || ', ' 
         || Nvl(To_char(src_data_scale), ' ') 
         || ')') 
                    END 
                   END 
                  || CASE 
       WHEN tgt_nullable = 'Y' THEN ' null ' 
       ELSE ' not null ' 
                   END 
                  || tgt_cons 
       WHEN tgt_col_name IS NULL THEN 'alter table ' 
               || tgt_table_name 
               || ' add ' 
               || src_col_name 
               || ' ' 
               || ' ' 
               || ' ' 
               || src_data_type 
               || ' ' 
               || CASE 
                WHEN src_data_type IN ( 
                  'DATE') 
                THEN NULL 
                ELSE 
       CASE 
        WHEN src_data_type IN ( 
         'VARCHAR', 'VARCHAR2')THEN 
        '(' 
        || 
        Nvl(To_char(src_data_len), ' ') 
        || 
        ') ' 
        ELSE Decode(Nvl(src_data_precision, -1 
           ), -1, NULL, 
         Nvl(To_char(src_data_precision), 
         ' ') 
         || ', ' 
         || Nvl(To_char(src_data_scale), 
          ' ') 
         || ')') 
       END 
                END 
               || tgt_cons 
       WHEN src_col_name IS NULL THEN 'alter table ' 
               || tgt_table_name 
               ||' drop ' 
               ||tgt_col_name 
       END alter_statement 
     FROM col_details) 
WHERE alter_statement IS NOT NULL; ", conn1)) 
        { 
         richTextBox1.AppendText(Environment.NewLine); 
         richTextBox1.AppendText(crtCommand.ExecuteNonQuery().ToString()); 
         richTextBox1.AppendText(Environment.NewLine); 
        } 

       } 

Answer 1

刪除「;」分號結尾！ OracleCommand自動添加在查詢字符串的末尾。