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What is __init__.py for?
...ABASE URL'? I tried to replicate this by enclosing the create_engine with 'mysql+mysqldb://root:python@localhost:3306/test' but it does not work. Thanks.
– SunnyBoiz
Jun 25 '19 at 13:34
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SHFileOperation函数总结（文件夹的移动、复制、删除） - C/C++ - 清泛网 -...
...r.exe保存被重命名的文件,以避免文件名冲突!
上面知道了如何才能使hNameMappings有效
现在如何使用hNameMappings,及其所指的结构大小?并取得这个内存块的内容呢?
hNameMappings 是简单LPVOID无法使用loop
要使用hNameMappings，必须定义一个...
SQL statement to get column type
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If you're using MySQL you could try
SHOW COLUMNS FROM `tbl_name`;
SHOW COLUMNS on dev.mysql.com
Otherwise you should be able to do
DESCRIBE `tbl_name`;
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If table exists drop table then create it, if it does not exist just create it
...ROP TABLE IF EXISTS `foo`;
CREATE TABLE `foo` ( ... );
Try searching the MySQL documentation first if you have any other problems.
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Efficiency of purely functional programming
...n pure lambda calculus) is known, even with laziness.
The aforementioned union-find
Hash tables
Arrays
Some graph algorithms
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However, we assume that in "imperative" languages access to memory is O(1) whereas in theory that can't be so asymptotically (i.e. for unbounded problem sizes) and acc...
How to generate .json file with PHP?
...t * from Posts limit 20";
$response = array();
$posts = array();
$result=mysql_query($sql);
while($row=mysql_fetch_array($result)) {
$title=$row['title'];
$url=$row['url'];
$posts[] = array('title'=> $title, 'url'=> $url);
}
$response['posts'] = $posts;
$fp = fopen('results.json...
Select where count of one field is greater than one
...hould be a GROUP BY defined for proper valuation in the HAVING clause, but MySQL does allow hidden columns from the GROUP BY...
Is this in preparation for a unique constraint on someField? Looks like it should be...
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How can I use UUIDs in SQLAlchemy?
...nally got it solid.
from sqlalchemy import types
from sqlalchemy.dialects.mysql.base import MSBinary
from sqlalchemy.schema import Column
import uuid
class UUID(types.TypeDecorator):
impl = MSBinary
def __init__(self):
self.impl.length = 16
types.TypeDecorator.__init__(sel...
SQL update query using joins
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FYI this will NOT work in MySQL (different syntax)! For MySQL have a look at gcbenison's answer
– Sliq
Jan 17 '17 at 16:28
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XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
... wamp? I am running wamp and still receiving this message. Apache, php and mysql are all up-to-date
– user2883071
Dec 24 '14 at 18:52
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