c*****d
发帖数: 6045 | 1 嗯,如果要操作的数据量小,update要比delete+insert快
如果要操作的数据量大,update要比truncate+insert慢 |
|
t*********i
发帖数: 217 | 2 Just see your reply :)
for the case you mentioned.
**************************************************
you have a table
Id1, id2, text
while ID1 is unique index, id2 is an int none indexed column and text is a
text column.
and you want to update the id2 column....based on id1....
****************************************************
I still think in Oracle, Update is quicker than delete+insert
in SQL server (and all other DB system that one update = one delete + one
insert), that should be no much |
|
n********6
发帖数: 1511 | 3 没用过mysql，不知道以下几种方法是否对你有用。
Option1:
cursor
loop
If not exists (Select ... From ...)
Insert into ...
Option2:
Union, if not have to to use 'insert'. |
|
t*****s
发帖数: 124 | 4 if the version of mysql is 4.1 or later
you can use following insert syntax:
Insert ... On Duplicate Key Update |
|
B*****g
发帖数: 34098 | 5 I don't know much about mysql and I don't have an environment to test.
I am thinking this one will always insert an record. When dup key, update
one of the key to a new value then insert.
All above is guess. |
|
m***i
发帖数: 2480 | 6 Some straight forward way:
Put all your new data into a temp table X.
delete all rows in X which are already in the Dest table
delete X from X Join Dest where X.A = Dest.A and X.B = Dest.B
insert all records in X to the Dest table
insert into Dest select * from X |
|
c*******o
发帖数: 1722 | 7 have a table tab_a with col_1 and col_2, now i need to map col_1 to
something and insert the results into col_2. for example, if col_1 = 17 then
insert col_2 as "Region 1". how do i do this? thanks a lot. |
|
c*******o
发帖数: 1722 | 8 i know how to use the case:
select case col_1
when '17' then 'Region 1'
else row
end as value
from tab_a
and i know insert
insert into tab_a (col_2) values(value)
but how to combine them together? |
|
n*w
发帖数: 3393 | 9 BCP 和bulk insert速度差不多。
.net 的 entity insert没听说。goolge了一下没有找到定义。能给个link？ |
|
g*****r
发帖数: 130 | 10 请问要 bulk insert 就一定要是 bulkadmin 吗。
I don't want to give bulkadmin to everybody in the team, but they have to
run a stored procedure that has a bulk insert statement. Is there other ways
to grant them permissions? Thank you. |
|
b*******e
发帖数: 57 | 11 How to bulk insert .csv data into sybase database?
For example, data is C:\test.csv,
sybase database name is testdb, table is testtbl.
How to write a SQL to bulk insert csv to this testtbl?
Anyone has any experience with that? |
|
y*****g
发帖数: 677 | 12 这个可能没什么原因。 如果你的TABLE很大，比如几十，几百G的话，是得花几分钟，
十几分钟的。可能是一个BUG IN INNODB.
For insert, 原因可能和你的table and indexes related.
贴 出来看看INSERT STATEMENT 和 TABLE DDL |
|
t*********i
发帖数: 217 | 13 北京mm说的这个管用的呀。
如果是insert select, 也可以加一个where clause.
insert into t1
select * from t2
where not exist (select * from t1 where t1.column =t2.column...); |
|
g*******n
发帖数: 2198 | 14 【 以下文字转载自 Apple 讨论区 】
发信人: goldenman (戈登曼), 信区: Apple
标 题: WD的移动硬盘显示 the disk you inserted was not readable by this computer
发信站: BBS 未名空间站 (Sun Nov 17 23:51:10 2013, 美东)
WD的移动硬盘显示 the disk you inserted was not readable by this computer
狗了下有说是wd和apple软件上的问题
以前用都好好的 突然今天开始这样
有没谁也遇到过这个问题 |
|
l****e
发帖数: 78 | 15 【 以下文字转载自 Windows 讨论区 】
发信人: lelele (乐吧!), 信区: Windows
标 题: word里面insert进去的大量图片可以同时调整明暗度(brightness)吗?
发信站: BBS 未名空间站 (Mon Feb 4 16:08:48 2008)
我需要把一些JPEG图片insert到一个word文档中,然后打印出来,但是发现图片都太暗了.
我现在想把那些图片的brightness调高一些,却又发现在WORD中只能一个一个的单独调(
用picture tool bar),太麻烦了,因为图片太多了.有没有办法可以选中所有图片一起调
?我试过用CTRL-A是不行的(没法调brightness)... |
|
y**w
发帖数: 8 | 16 hi, I had a video and want to insert my java applet. anyone know how to do
that?
from the book i can only see how to insert animation into applet, if i can
convert the video into a series of .gif file , that would also work, but how?
Thanks. |
|
v*******8
发帖数: 20 | 17 how to insert a node into an existing xml file? - besides creating dom then
writing out to file?
the xml file is very long (several k lines), and I want to keep the comments
in original xml file. The node needs to be insert right before the end tag
of the root
thanks |
|
e***e
发帖数: 168 | 18 Hi,
I need to frequently insert a line of text during my programming under vim.
Is there anyway to setup a short cut to do this in vim?
For example, if I want to press a key or a key combination to insert "this
is debug trace" under the current cursor, can I setup this in vim?
thanks! |
|
e*n
发帖数: 1511 | 19 I googled it for you:
under command mode, press q then a.
Vim should display "recording" on left corner.
Then type:
i #enter insertion mode
this is debug trace #this is what you want to put in everytime
q #finish recording.
That's it. You can insert this line anywhere by typing @a. |
|
b***y
发帖数: 2799 | 20 thanks for your explanation. I think inserter can be used on list even it
's a sequential container. What's the point to use inserter on associative
containers? |
|
l****e
发帖数: 78 | 21 【 以下文字转载自 Windows 讨论区 】
发信人: lelele (乐吧!), 信区: Windows
标 题: word里面insert进去的大量图片可以同时调整明暗度(brightness)吗?
发信站: BBS 未名空间站 (Mon Feb 4 16:08:48 2008)
我需要把一些JPEG图片insert到一个word文档中,然后打印出来,但是发现图片都太暗了.
我现在想把那些图片的brightness调高一些,却又发现在WORD中只能一个一个的单独调(
用picture tool bar),太麻烦了,因为图片太多了.有没有办法可以选中所有图片一起调
?我试过用CTRL-A是不行的(没法调brightness)... |
|
z*t
发帖数: 863 | 22 有人说3kb以上的insert从entry vector到destination vector recombination rate会
很低，求问3kb以上的insert recombination后postive rate如何？谢谢：） |
|
s******y
发帖数: 28562 | 23 对于vector 和 insert的理解不是按大小而定的。
其实因为抗生素（或者其他什么用来做选择的）基因以及各种乱七八糟用
来扩展的因子等等都是在vector上的，所以没有连上vector的片断都不能
在细菌里面扩增。
所以包含抗生素和那些扩展因子的都是vector，再小也是。
不包含这些的就是insert, 再大也是 |
|
s******y
发帖数: 28562 | 24 但是反正多加insert 是肯定不会出问题的：）因为反正他们就算自己链上了
也奈何不了你
所以为了保险以见，这个insert, 多多益善 |
|
j*****a
发帖数: 92 | 25 The insert should be 0.9 kb, which is correct on oagarose gel
electrophoresis analysis. However, after ligation, tranformation. Positive
transformants show plasmid (correct size( and insert (1.5 kb instead 0.9 kb)
. Then we expressed it and do not get the protein. Any suggstion? Thanks |
|
a******a
发帖数: 283 | 26 We want to detect a gene of interest inserted into human genome by
retrovirus, using qPCR. That said human genome will be in the background and
the gene of interest should have no overlap with human genome. However the
gene of interest is high GC content (around 70%). Currently we are building
a standard curve by mocking the reaction condition, but the result is not
that well.
Any recommendation? Anybody familiar with detecting gene insert in the
genome? Any recommendation regarding good literat... 阅读全帖 |
|
G***G
发帖数: 16778 | 27 how to insert citation from online search result in endnote v7?
in endnote v6, I just clicked on the reference in the online search result
and then went to word and clicked on 'insert selected citation'.
how can you achieve this in endnote v7? |
|
c*******t
发帖数: 174 | 28 如果不能解出来，就要thesis Incomplete 了，
需要我将AUTOCAD，Insert block 命令中scaling factors 从只能输入实数，变成可以输
入方程。
真的是被老板逼的没法阿。如果你有Insert block 命令的visul lisp 源程序，可否传给
我一份，我可以在它的原文里修改。
或者如果您很了解VISUAL LISP 请告诉我有没有什么别的办法。
万分感谢！！！！！！
x***[email protected] |
|
w*******y
发帖数: 60932 | 29 Insertable Binder 5-Tab Dividers .89, uni-ball Retractable Gel Pens, 2 Blue
$1.32, Vivo Mechanical Pencils, 12-Pack $1.19, Mead Spiral Notebook .56,
Washable Crayons, 8 Colors .66 free shipping with Prime (FSSS) from Amazon
Sorry wasn't able to fit the store in the title
Vivo Grip Mechanical Pencils, Refillable, 0.7 mm, 12-pack, $1.19
Wilson Jones Insertable Binder 5-Tab Dividers, Multicolor .89
Mead Spiral Notebook, 1-Subject, 70-Count, Wide Ruled, Yellow .56
Dixon Prang Washable Crayons, 8 Col... 阅读全帖 |
|
w*******y
发帖数: 60932 | 30 You can see the 10/2 coupon insert preview here,
Link:
http://www.sundaycouponpreview.com/
YMMV since this coupon might be regional and not all regions will receive
this!
There will be $8/2 Cover Girl face product coupon in the Sunday P&G coupon
insert as per the preview.
The Cover Girl blush are price around $4, so 2 free cover Girl for free!!!
My store had them priced for $3.74, so if you buy 2 total will be $7. 48 .
Use 1 $8/2 Q and get both items free plus $0.52 Overage !!!
There's also a re... 阅读全帖 |
|
j******r
发帖数: 30 | 31 这个engine air-cleaner insert就是平常大家说的air filter吗？那这个passenger
compartment fuel filter又是干嘛的？谢谢先。 |
|
e******9
发帖数: 694 | 32 不建议交易打印胖子；胖子是免费的，收费的是服务:
要10张吧
所求物品名称:
$.50/2 NESTLE CARNATION EVAPORATED MILK
物品类别（coupon: mfc 等；血糖仪等）:
COUPON
物品来源（报纸夹页，厂家邮寄等）:
9/26/2010 SS Insert
可接受的价格（必须明码标价，必填）:
0.1每张加邮费？ 不知道这个价格要多少合适
邮寄损失方式哪方承担（若需邮寄，必填）:
付款方式说明:
本贴有效期（必填）:
TILL GOT
联系方式（例： 站内）:
站内 |
|
l*********a
发帖数: 1155 | 33 怎么总是零 insertion fee 呢？
烦死了！ |
|
m***k
发帖数: 3748 | 34 医院说：“These $0.00 insertion fee listings also have a final value fee per
listing of 8.75% or $20, whichever is lower. ”
是不是还是8.75% of the initial $25.00 ($2.19), plus 3.50% of the remaining
closing value balance($25.01 - $1,000.00)？还是全部的8.75%？
医院的原话没表达清楚，请过来人指教！谢谢！ |
|
m***k
发帖数: 3748 | 35 唉，被医院坑了。1小时后就要卖出一个200刀左右的药，当时list时是零insertion
fee的。。。。 |
|
d****u
发帖数: 2589 | 36 FREE Insertion Fees Jan 25 - Feb 8 |
|
d*********r
发帖数: 11979 | 37 Poor, you have always be paying insertion fee? |
|
t*******o
发帖数: 1124 | 38 如果我list fixed price item的时候，quantity选的是3
那么，卖掉3个之后，是收3次 insertion fee 还是一次？ |
|
t*******o
发帖数: 1124 | 39 也就是说，用这种方法list，与同样的东西list三次，可以省insertion fee? |
|
r******r
发帖数: 700 | 40 这个版本的 insert 为什么不正确？ 谁能帮忙看看
public void insert1(T value){
if( root == null ){
root = new BSTNode(value);
}else
insertHelper(value, root);
}
private void insertHelper(T value, BSTNode node){
if( value.compareTo(node.value_) < 0 ){
if( node.left == null )
node.left = new BSTNode(node.value_);
else
insertHelper(value, node.left);
}else if( value.compareTo(node.value_) > 0 ){
if( node.right == null )... 阅读全帖 |
|
h*****g
发帖数: 944 | 41 convert a random array to BST: o(nlogn)
insertion: o(logn)
deletion: o(logn)
貌似deletion有三种情况，
1 Deleting a leaf (node with no children): Deleting a leaf is easy, as we
can simply remove it from the tree.
2 Deleting a node with one child: Remove the node and replace it with its
child.
3 Deleting a node with two children:
这三种情况不都是O(logn)吧？ |
|
P**********c
发帖数: 3417 | 42 programming perls里13章第4题的答案里说可以这样
void insert (t) {
for(p=&head; (*p)->val < t; p= & ((*p)->next))
;
if((*p)->val==t)
return;
*p = new node (t, *p);
n++;
}
书里的意思似乎是说因为用了pointer to pointer, 就不需要update老的parent的next
了。为什么会这样呢？没想明白。即使pointer to pointer，原来那个位置的parent的
next必须指向新的node, 也就是新的*p啊。虽然p没变，但是*p变了还是不行的吧。后
面第7题又用了类似的方法。是不是我有一个memory的基本东西没转过弯来呢。 |
|
f*******t
发帖数: 7549 | 43 linked list的insert不可能是O(1)吧……应该是O(n) |
|
G*******n
发帖数: 3144 | 44
单纯的insert是o(1)
但是如果要考虑上搜索位置是O(n)咯 |
|
j**w
发帖数: 382 | 45 Insert all input data into max_heap and min_heap. O(n)+O(n) = O(n)
x = max_heap.top();
y = min_heap.top();
while (x != y)
{
max_heap.pop();
min_heap.pop();
x = max_heap.top();
y = min_heap.top();
}
ret = x;
// while loop is O(n/2 * log n) |
|
p*****2
发帖数: 21240 | 46 刚才又重写了一遍
class Solution1
{
TreeMap tm = new TreeMap();
void insert(Interval interval)
{
Integer prev = tm.floorKey(interval.start);
Integer next = tm.ceilingKey(interval.start);
if (prev != null && tm.get(prev) >= interval.start || next != null
&& interval.end >= next)
{
int start = -1;
if (prev != null && tm.get(prev) >= interval.start)
{
tm.put(pre... 阅读全帖 |
|
h*****f
发帖数: 248 | 47 If it is a doubly linked list, you can insert at O(n) and check the previous
and next nodes to see whether the new node can be merged. |
|
w****x
发帖数: 2483 | 48 [sourcecode language="cpp"]
//None overlap segments (5,10)(15,17)(18,25),
//insert (16,35), print out merged result:（5，10）（15，35）
bool intersect(int b1, int e1, int b2, int e2)
{
return max(b1, b2) <= min(e1, e2);
}
void PrintMergRes(int a[], int b[], int n, int nBeg, int nEnd)
{
assert(a && b && n > 0 && nBeg < nEnd);
int i = 0;
while (i < n)
{
if (!intersect(a[i], b[i], nBeg, nEnd)) //no intersect
{
cout<<"("<
i++;
}
else
{
int nSegBeg = nBeg;
int nSegEnd = nEnd;
wh... 阅读全帖 |
|
i**********e
发帖数: 1145 | 49 Did you consider the case where the inserted interval may not overlap with
all other existing intervals? |
|
w****x
发帖数: 2483 | 50
牛哥啊~~ 这都看出来了, 确实没考虑到, 修改后的代码:
//None overlap segments (5,10)(15,17)(18,25),
//insert (16,35), print out merged result:（5，10）（15，35）
bool intersect(int b1, int e1, int b2, int e2)
{
return max(b1, b2) <= min(e1, e2);
}
void PrintMergRes(int a[], int b[], int n, int nBeg, int nEnd)
{
assert(a && b && n > 0 && nBeg < nEnd);
int i = 0;
while (i < n)
{
if (!intersect(a[i], b[i], nBeg, nEnd)) //no intersect
{
//falls between intervals or at first
... 阅读全帖 |
|
