大约有 40,000 项符合查询结果（耗时：0.0427秒） [XML]
What scalability problems have you encountered using a NoSQL data store? [closed]
...g 18,000 objects in a normalised structure: 90,000 rows across 8 different tables. Took 1 minute to retrieve and map them to our Java object model, that's with everything correctly indexed etc.
Storing them as key/value pairs using a lightweight text representation: 1 table, 18,000 rows, 3 seconds ...
Make body have 100% of the browser height
...the best solution:
html {
width: 100%;
height: 100%;
display: table;
}
body {
width: 100%;
display: table-cell;
}
html, body {
margin: 0px;
padding: 0px;
}
It is dynamic in that the html and the body elements will expand automatically if their contents overflow. I t...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'
...nit.d/mysqld stop
Start MySQL in safe mode
sudo mysqld_safe --skip-grant-tables &
Log into MySQL using root
mysql -uroot
Select the MySQL database to use
use mysql;
Reset the password
-- MySQL version < 5.7
update user set password=PASSWORD("mynewpassword") where User='root';
-- MySQ...
Thread context switch Vs. process context switch
...?t=46m8s (watch from the beginning to know more about Virtual Memory, page tables and TLB).
– piotrwest
Jun 24 '16 at 23:05
...
MySQL integer field is returned as string in PHP
I have a table field in a MySQL database:
14 Answers
14
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How to export and import a .sql file from command line with options? [duplicate]
...an we set constraints like enable/disable foreign key check or export only table structure with mysqldump
– AZinkey
Feb 28 '15 at 2:48
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How does variable assignment work in JavaScript?
...y are similar to...", then follows with a list of dictionaries, hash, hash tables, and hash maps from various programming languages. The same page describes object property references as hash table lookups. So objects are everything like a 'hash' table. This does not nullify the other useful info...
How to find the statistical mode?
... hope it's helpful. It is also what I was thinking anyways. You'll want to table() the data, sort and then pick the first name. It's hackish but should work.
names(sort(-table(x)))[1]
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impr...
What should every developer know about databases? [closed]
...r a nontrivial requirement is not a trivial task. You can't build good SQL tables if you misunderstand the relational model.
Physical data modeling is generally DBMS specific, and doesn't need to be learned in much detail, unless the developer is also the database builder or the DBA. What develope...
CSS3 transform not working
...evel or atomic inline-level element, or whose display property computes to table-row, table-row-group, table-header-group, table-footer-group, table-cell, or table-caption
an element in the SVG namespace and not governed by the CSS box model which has the attributes transform, ‘patternTransform‘...