大约有 19,000 项符合查询结果(耗时:0.0334秒) [XML]
SET NAMES utf8 in MySQL?
I often see something similar to this below in PHP scripts using MySQL
8 Answers
8
...
Convert a series of parent-child relationships into a hierarchical tree?
...that array into a hierarchical tree structure:
function parseTree($tree, $root = null) {
$return = array();
# Traverse the tree and search for direct children of the root
foreach($tree as $child => $parent) {
# A direct child is found
if($parent == $root) {
...
Deep Learning(深度学习)学习笔记整理系列之(四) - 大数据 & AI - 清泛...
...,这个AutoEncoder还不能用来分类数据,因为它还没有学习如何去连结一个输入和一个类。它只是学会了如何去重构或者复现它的输入而已。或者说,它只是学习获得了一个可以良好代表输入的特征,这个特征可以最大程度上代表...
MySQL - force not to use cache for testing speed of query
I'm testing the speed of some queries in MySQL. The database is caching these queries making it difficult for me to get reliable results when testing how fast these queries are.
...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
...
From the MySQL 5.5 documentation:
One TIMESTAMP column in a table can have the current timestamp as the default value for initializing the column, as the auto-update value, or both. It is not possible to have the current timestamp...
How to get ID of the last updated row in MySQL?
How do I get the ID of the last updated row in MySQL using PHP?
12 Answers
12
...
What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...culations on lat / long pairs, what datatype is best suited for use with a MySQL database?
21 Answers
...
How do I specify unique constraint for multiple columns in MySQL?
...
For those people using MySQL workbench: go to the Indexes tab and select UNIQUE as your type. Give your index a name and check the appropriate columns under the section "Index Columns"
– Pakman
Jun 3 '13 at 2...
Auto Generate Database Diagram MySQL [closed]
...elect specific tables and then create a database diagram for me based on a MySQL database? Preferably it would allow me to edit the diagram afterward since none of the foreign keys are set...
...
Access nested dictionary items via a list of keys?
...uce # forward compatibility for Python 3
import operator
def get_by_path(root, items):
"""Access a nested object in root by item sequence."""
return reduce(operator.getitem, items, root)
def set_by_path(root, items, value):
"""Set a value in a nested object in root by item sequence.""...