SQL> create or replace function 2 remove_constants(p_query in varchar2) return varchar2 3 as 4 l_query long; 5 l_char varchar2(1); 6 l_in_quotes boolean default FLASE; 7 begin 8 for i in 1..length(p_query) 9 loop 10 l_char :=substr(p_query,i,1); 11 i…
B. A and B and Compilation Errors time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A and B are preparing themselves for programming contests. B loves to debug his code. But before he runs t…
A and B and Compilation Errors time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A and B are preparing themselves for programming contests. B loves to debug his code. But before he runs the…
B. A and B and Compilation Errors time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A and B are preparing themselves for programming contests. B loves to debug his code. But before he runs t…
A and B are preparing themselves for programming contests. B loves to debug his code. But before he runs the solution and starts debugging, he has to first compile the code. Initially, the compiler displayed n compilation errors, each of them is repr…
ERROR:1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column. To disable safe mode, toggle the option in Preferences -> SQL Editor and reconnect. 解决方式:当前处于safe update模式,所以只能通过主键字段更新记录,删除同理. ERROR:遇…
用mac终端ssh连接Linux服务器,提示以下错误: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY…
这道题是超级水的,在博客上看有的人把这道题写的很麻烦. 用 Python 的话是超级的好写,这里就奉上 C/C++ 的AC. 代码如下: #include <cstdio> #include <iostream> using namespace std; int main(void) { long long int n, num; while (scanf("%lld", &n) != EOF) { long long int sum1 = 0, sum…
昨天在学习oracle存储过程的时候,写了一个存储过程的demo,语句是这样的: )) AS psssal TESTDELETE.TESTID%TYPE; BEGIN SELECT TESTID INTO psssal FROM TESTDELETE WHERE TESTNAME=PNAME; ) WHERE TESTNAME=PNAME; DBMS_OUTPUT.PUT_LINE()); end; / 想法是通过表的varchar(20)类型字段找到number类型字段,然后更改number类…
参考: http://blog.csdn.net/haiross/article/details/20612135 Oracle/PLSQL: ORA-06550 Learn the cause and how to resolve the ORA-06550 error message in Oracle. Description When you encounter an ORA-06550 error, the following error message will appear: OR…
Oracle加绕功能可以将PL/SQL代码实现部分隐藏,如存储过程.函数.包体等均可使用加绕功能,下面以一个存储过程实现部分加绕来展示Oracle加绕功能的使用. 加绕方法一: 1.编写如下存储过程后,保存为C:\wraptest.sql文件 CREATE PROCEDURE wraptest IS TYPE emp_tab IS TABLE OF OPER_OPERATOR%ROWTYPE INDEX BY PLS_INTEGER; all_emps emp_tab; B…
1.ORA-00942: table or view does not exist 指的你要操作的表尚未存在,需要先create出来先. 2.ORA-00922: missing or invalid option 指的是有语法错误.遗漏了分号什么的 3.Warning: Procedure created with compilation errors 比如 create or replace procedure p_test_pro1 is begin insert i…
