SELECT语句的使用select语句:○5SELECTselect_list○1FROMtable_source○2[WHEREsearch_condition]○3[GROUPBYgroup_by_expression]○4[HAVINGsearch_condition]○6[ORDERBYorder_expresion[ASC|DESC]]SELECT语句执行顺序:A、FROM阶段B、WHERE阶段C、GROUPBY阶段D、HAVING阶..
分类:
数据库 时间:
2015-03-31 20:19:42
阅读次数:
270
SELECT语句的使用SELECT语句执行顺序:A、FROM阶段B、WHERE阶段C、GROUPBY阶段D、HAVING阶段E、SELECT阶段F、ORDERBY阶段1)、FROM阶段:FROM阶段标识出查询的来源表,并处理表运算符如果指定了表运算符,还需要按从左到右的顺序,对运算符进行逐个处理。表运算符有4类,JOIN、A..
分类:
数据库 时间:
2015-03-31 20:19:02
阅读次数:
273
In computer software, a user exit is a place in a software program where a customer can arrange for their own tailor-made program to be called. In the...
分类:
其他好文 时间:
2015-03-31 19:53:54
阅读次数:
165
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.
之前在Sicily做过,就是实现一个AVL树了。
struct TreeNodeNew {
int val;
TreeNodeNew *left;
Tr...
分类:
其他好文 时间:
2015-03-31 18:09:23
阅读次数:
150
String sqlStr="select t.car_kind,count(t) from table1 t where t.jb_date='"+jb_date+"' and t.state='"+state+"' and t.sbzt='1' and t.bureau_code='"+ljdm...
分类:
其他好文 时间:
2015-03-31 17:27:14
阅读次数:
137
(select
bg.sysyear,
bg.orgontid,
bg.orgname,
bg.accvouchercode,
bg.accvouchername,
‘‘ as accvoucherprop
from gzyt_middle.beginningbalance bg
where bg.ledger = ‘02‘
and bg.sysyear = ‘2015‘)
union ...
分类:
数据库 时间:
2015-03-31 13:06:52
阅读次数:
429
题目链接:valid-sudoku
import java.util.Arrays;
/**
*
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.
The Sudoku board could be partially filled, where empty cells ...
分类:
其他好文 时间:
2015-03-31 12:52:27
阅读次数:
208
Writes SAS date values in the form yy>yymmdd or yy>yy-mm-dd, where the x in the format name is a character that represents the special character that separates...
分类:
其他好文 时间:
2015-03-31 12:49:02
阅读次数:
146
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in or...
分类:
其他好文 时间:
2015-03-31 12:15:09
阅读次数:
98
with cte as( select Id,Pid,DeptName,0 as lvl from Department where Id = 2 union all select d.Id,d.Pid,d.DeptName,lvl+1 from cte c inner jo...
分类:
数据库 时间:
2015-03-31 12:13:02
阅读次数:
184