比如,一个语句,insert into mbProduct(p_UserID,p_BigID,p_qq)values("+getUserid+",'"+getdrpdl+"',"+qq+",,'"+bb+"')(getUserid是从主键获得,一定有值,可以这样写),如果这样,假设qq是从文本框获得的,如果是这个形式: string qq=txtqq.text,会发生,当txtqq为空时,没有值,也就是这样insert int
前言:前几天在做项目demo的时候,发现有一个很奇怪的现象,就是MyBatis发现更新和插入返回值一直为"-2147482646".无论怎么改,这个值一直不变...是在摸不着头脑,百度和谷歌了一下,有这样的说法原来是由defaultExecutorType设置引起的,如果设置为BATCH,更新返回值就会丢失. If the BATCH executor is in use, the update counts are being lost. 操作:也就是说在spring的配置文件中,只
Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals were initially sorted according to their start times. Example 1: Given intervals [1,3],[6,9], insert and merge
遍历,一共有三种情况, 1. pre <= x <= current 2. 遍历到了head时,x>tail 或者 x<=head (不会等于tail) 3. 遍历回aNode或同值的Node,此时直接插到此Node的前面 public void insert(Node aNode, int x) { ListNode last = aNode; ListNode current = aNode.next; while (current.val != aNode.val) { if
这里做了比较清晰的解释: http://mybatis.github.io/mybatis-3/java-api.html SqlSession As mentioned above, the SqlSession instance is the most powerful class in MyBatis. It is where you'll find all of the methods to execute statements, commit or rollback transacti
问题 Implement insert and delete in a tri-nary tree. A tri-nary tree is much like a binary tree but with three child nodes for each parent instead of two -- with the left node being values less than the parent, the right node values greater than the pa
Given a node from a cyclic linked list which has been sorted, write a function to insert a value into the list such that it remains a cyclic sorted list. The given node can be any single node in the list. (increasing sorted) We need to consider the f
Design a data structure that supports all following operations in averageO(1) time. insert(val): Inserts an item val to the set if not already present. remove(val): Removes an item val from the set if present. getRandom: Returns a random element from
Design a data structure that supports all following operations in averageO(1) time. Note: Duplicate elements are allowed. insert(val): Inserts an item val to the collection. remove(val): Removes an item val from the collection if present. getRandom:
Given a node from a cyclic linked list which is sorted in ascending order, write a function to insert a value into the list such that it remains a cyclic sorted list. The given node can be a reference to any single node in the list, and may not be ne
Given a node from a cyclic linked list which has been sorted, write a function to insert a value into the list such that it remains a cyclic sorted list. The given node can be any single node in the list. Solution:Basically, you would have a loop tha
