= ', m= ' 05 ')
column
Delete Column
ALTER TABLE table_name DROP COLUMN ID;Add columns
Alter Table table_name add COLUMNS (ID string comment ' codename ');Modify columns (this can be used to modify field comments)
ALTER TABLE table_name Change ID level string Comment ' hierarchy code ';Replace column
ALTET TABLE table_name REPLACE COLUMNS
(id_new string COMMENT ' new Field 1 ', level_new string COMMENT ' new Field 2 ');
Table
Rename table name
ALTER TABLE old_table RENAME to new_table;
Virus Name: MSN Photo (WORM.MAIL.PHOTOCHEAT.A)
Virus type: Worm virus
Virus Hazard Level: ★★★☆
Virus Analysis:
This is a worm spread through MSN, the virus behavior is as follows:
1, after the virus to create their own compression package named Photos.zip released into the%windir% directory, release a syshosts.dll dynamic library to%system% directory, the dynamic library into the system of multiple threads to achieve its spread function.
2, the virus will automatically create the following
Label:To create a table:CREATE TABLE User (ID Int (8) primary key unique NOT NULL auto_increment,P_name Char (a) unique NOT NULL,P_level int (3) Default 1) Charset=utf8;Key words: Primary KEY (primary key), unique (), not null (non-NULL), auto_increment (self-growing), default (defaults). To delete a table:drop table hehe; Add Columns:ALTER TABLE LOL add Lol_type char (TEN) not null; To delete a column:ALTER TABLE
) {Game[] g = new game[4];G[0] = new C9 ();G[1] = new CF ();G[2] = new CS ();G[3] = new LOL ();for (int i=0;iG[i].play ();}}}Class C9 extends Game {public void Play () {System.out.println ("C9");}}Class CF extends Game {public void Play () {System.out.println ("CF");}}Class CS extends Game {public void Play () {System.out.println ("CS");}}Class LOL extends Game {public void Play () {System.out.println ("
setSunionstoreTo set and save the Assembly to the set of output$redis->sunionstore (' Output ', ' key1 ', ' key2 ', ' Key3 ');SdiffFinding the difference setSdiffstoreFinding the difference set and saving the difference set to the set of outputSmembers, SgetmembersReturns all elements of a set with a name of keySortSorting, paging, etc.Parameters' By ' = ' some_pattern_* ',' Limit ' = = Array (0, 1),' Get ' = ' some_other_pattern_* ' or an array of patterns,' Sort ' = ' asc ' or ' desc ',' Alph
Returns all elements of a set with a name of key
Sort
Sorting, paging, etc.
Parameters
' By ' = ' some_pattern_* ', ' limit ' = = = Array (0, 1), ' get ' = ' some_other_pattern_* ' or an array of patterns, ' sort ' = Gt ' ASC ' or ' desc ', ' alpha ' = = TRUE, ' store ' = ' external-key '
Example
$redis->delete (' s '); $redis->sadd (' s ', 5); $redis->sadd (' s ', 4); $redis->sadd (' s ', 2); $redis->sadd (' s ', 1); $redis->sadd (' s ', 3); Var_dump ($redis->sort (' s ')); 1,2,3,4,5var_dump (
;array_reverse () accepts an array of arrays as input and returns a new array of cells in reverse order nbsp;im ...
2. PHP string Reverse
Introduction: Recently in writing Xiaonei FTP search engine, because of the Chinese character string word, I used a positive inverse combination of methods, the Chinese string needs to be reversed. The internet looked for a bit, looked like, all need to cycle, I am not very fond of. So I looked at the manual and found a few letters that could be used: the Str
new array of cells in reverse order implode () function combines array elements into a single word ...
2. lol re-random PHP reverse sorting and random sort code
Description: lol re-random: lol re-random PHP reverse sort and random sort code: Array_reverse () function and shuffle () function introduction Array_reverse () array array_reverse (array) Array_ The rev
hash example.
%hash = (1, 2, 'a', 'b', 'c'); print $hash{'a'};
Expected values
The actual value of B is Mao's output of B. Can someone tell me how the trojan is handled.0x02 Vulnerability
What vulnerabilities will these problems cause?
Let's take a look at the comparison between php and perl processing on the web.
In this case, it seems that there is no problem with wood. What if we use a complex parameter?
Php is very good at processing incoming data, and perl's approach is that it can di
', ' key1 ', ' key2 ', ' Key3 ');SdiffFinding the difference setSdiffstoreFinding the difference set and saving the difference set to the set of outputSmembers, SgetmembersReturns all elements of a set with a name of keySortSorting, paging, etc.Parameters' By ' = ' some_pattern_* ',' Limit ' = = Array (0, 1),' Get ' = ' some_other_pattern_* ' or an array of patterns,' Sort ' = ' asc ' or ' desc ',' Alpha ' = TRUE,' Store ' = ' external-key 'Example$redis->delete (' s '); $redis->sadd (' s ', 5)
(-1) descriptionI am using chrome49, this method involves the jquery version problem, I have 3.0 of, have 1.9.1, back will 1.9.1 and its previous known as the low version, 3.0 is called the high versionThe showmessage method used in the test example is as followsSHOWMESSAGE.I = 0;function ShowMessage (object) {var BODY = $ ("body") [0]; var $p =$ ("#debugp"); if ($p. length==0) {$p = $ (" (0) $.data (obj,key,value)The key value is a string type, numeric, object (Var
' desc ', ' alpha ' = ' = ', ' store ' = ' External-key ' example $redis->delete (' s '); $redis->sadd (' s ', 5); $redis->sadd (' s ', 4); $redis->sadd (' s ', 2); $redis->sadd (' s ', 1); $redis->sadd (' s ', 3); Var_dump ($redis->sort (' s ')); 1,2,3,4,5var_dump ($redis->sort (' s ', array (' sort ' = ' desc '))); 5,4,3,2,1var_dump ($redis->sort (' s ', array (' sort ' = ' desc ', ' store ' = ' out '))); (int) 5 string command Getset returns the value from the original key and writes value t
', ' key1 ', ' key2 ', ' Key3 ');SdiffFinding the difference setSdiffstoreFinding the difference set and saving the difference set to the set of outputSmembers, SgetmembersReturns all elements of a set with a name of keySortSorting, paging, etc.Parameters' By ' = ' some_pattern_* ',' Limit ' = = Array (0, 1),' Get ' = ' some_other_pattern_* ' or an array of patterns,' Sort ' = ' asc ' or ' desc ',' Alpha ' = TRUE,' Store ' = ' external-key 'Example$redis->delete (' s '); $redis->sadd (' s ', 5)
I-laughing out LoudTime limit:1000MS Memory Limit:524288KB 64bit IO Format:%i64d %i6 4u SubmitStatusPracticeGym 100589IDescriptionStandard Input/outputLittle Toojee is a happy go lucky boy. He seemed to the find most, if not all, things funny. One day he read a word and started laughing a lot. Turns out this word consisted only of the letters L and O. Whenever he saw the subsequence 'LOL' in the word, he laughed for 1 second. Given T strings, fi
DescriptionSpicy Chicken Konjac konjac Sol is a fool, he actually think the number is very cute!Today he has a combination of numbers. Now he would like to know what Simga (c (n,i)) is, where C is the number of combinations (that is, C (n,i) means that n items have no sequential selection of i), I take from 0 to n all even numbers.Because the answer can be large, output the remainder of the answer to 6662333.InputThe input contains only an integer n.OutputOutput an integer, which is the answer.S
set and save the Assembly to the set of output$redis->sunionstore (' Output ', ' key1 ', ' key2 ', ' Key3 ');SdiffFinding the difference setSdiffstoreFinding the difference set and saving the difference set to the set of outputSmembers, SgetmembersReturns all elements of a set with a name of keySortSorting, paging, etc.Parameters' By ' = ' some_pattern_* ',' Limit ' = = Array (0, 1),' Get ' = ' some_other_pattern_* ' or an array of patterns,' Sort ' = ' asc ' or ' desc ',' Alpha ' = TRUE,' Stor
JQuery hands-on speed games-zhudi tornado and jquery tests(-1) Preface
I used chrome49, jquery3.0, And I got 399 points. Believe it or not.(1) design ideas
The two p elements are placed in the div. the height and width of each p element are the same as those of the div. When the mouse is placed on the div, the first p moves up (changing the marginTop value ), when the mouse leaves the div, the first p moves down.(2) knowledge reserve a.: nth-child
# Lol
; set ('x', '42 ');$ Exvalue = $ redis-> GetSet ('x', 'lol '); // return '42', replaces X by 'lol'$ Newvalue = $ redis-> get ('x') '// return 'lol'
AppendString, the value of the string with the name of key is appended with value$ Redis-> set ('key', 'value1 ');$ Redis-> append ('key', 'value2 ');$ Redis-> get ('key ');
Getrange (method does not exist)Returns the
years. I don't know what everyone is busy? Are you sure you want to find your own goals?
It is said that a gang called LOL has been born, affecting countless college students. There are two aggressive roles, PanSen (PS) and JanSheng (JS ). These two guys are famous for their aggressive nature and known as "duxiong" by outsiders ". But none of them agree with each other. As long as they meet each other, they will greet each other affectionately. (Of c
pic to my new slideshow?Can I up some of these pics of ya to my myspace profile?Wow I think I found your pic on myspace!Hah I think I found an old pic of us!Haha lets hope your parents dont see this picture of youYou care if I put this pictuer of you in my new album?OMFG !!!!!!!!Wow! Look at this old picture I foundSorry about the messup I fixed the pic! Try it one more time pzIs this pic tooo sexy for photobucket ??Wow I just dyed my hair... You will never believe the color it is now.
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