mysql

问题 I'm using Panda and matplotlib to draw graphs in Python. I would like a live updating gaph. Here is my code: import matplotlib.pyplot as plt import matplotlib.animation as animation import time import numpy as np import MySQLdb import pandas def animate(): conn = MySQLdb.connect(host="localhost", user="root", passwd="", db="sentiment_index", use_unicode=True, charset="utf8") c = conn.cursor() query = """ SELECT t_date , score FROM mytable where t_date BETWEEN Date_SUB(NOW(), Interval 2 DAY)

问题 Hello I'm using the following hibernate-core-4.1.2.Final.jar mysql-connector-5.1.6.jar Both can be found in my project lib directory. I have the following hibernate.cg.xml configuration. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!-- Defines the SQL dialect used in Hiberante's application -->

问题 In Django/Python, how do I catch a specific mySQL error: 'IntegrityError': try: cursor.execute(sql) except IntegrityError: do_something Not sure what I should import and from where. 回答1: DId you try from django.db import IntegrityError ? First result for me in Google btw. when searching for IntegrityError. 回答2: Here is a similar response . In summary from django.db import IntegrityError from django.shortcuts import render_to_response try: # code that produces error except IntegrityError as e:

问题 In Django/Python, how do I catch a specific mySQL error: 'IntegrityError': try: cursor.execute(sql) except IntegrityError: do_something Not sure what I should import and from where. 回答1: DId you try from django.db import IntegrityError ? First result for me in Google btw. when searching for IntegrityError. 回答2: Here is a similar response . In summary from django.db import IntegrityError from django.shortcuts import render_to_response try: # code that produces error except IntegrityError as e:

问题 In Django/Python, how do I catch a specific mySQL error: 'IntegrityError': try: cursor.execute(sql) except IntegrityError: do_something Not sure what I should import and from where. 回答1: DId you try from django.db import IntegrityError ? First result for me in Google btw. when searching for IntegrityError. 回答2: Here is a similar response . In summary from django.db import IntegrityError from django.shortcuts import render_to_response try: # code that produces error except IntegrityError as e:

问题 Possibly Answered Here: storing image to byte[] into Mysql using asp.net and c# using System.Drawing; using System.Drawing.Imaging; var imageBytes = imageToByteArray(pictureBox1.Image); var insert = new MySqlCommand("Insert INTO itemimage set imageName = '" + imageBytes + "'", _con); insert.ExecuteNonQuery(); public byte[] imageToByteArray(Image imageIn) { var ms = new MemoryStream(); imageIn.Save(ms, ImageFormat.Gif); return ms.ToArray(); } Table: itemimage 2 | System.Byte[] | 13byte 3 |

问题 im trying to save to my data base a long text (about 2500 chars) input by my users using a web form and passed to the server using php. When i look in phpmyadmin, the text gets crop. How can i config my table in order to get the complete text? This is my table config: CREATE TABLE `extra_879` ( `id` bigint(20) NOT NULL auto_increment, `id_user` bigint(20) NOT NULL, `title` varchar(300) NOT NULL, `content` varchar(3000) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `id_user` (`id_user`) ) ENGINE

问题 I would appreciate any help creating this query. I have tried several methods without luck. As my question is somewhat difficult for me to phrase, I will make a simple example of what I want to do. I have data that is structurally similar to the following: ID TYPE COLOR 1 A Blue 1 B Red 1 C Green 2 C Blue 2 B Green I want to create a query to return the types if I have an ID with two specific colors. For example I would like to find all the ID that have both Blue and Red. The query would then

问题 im trying to save to my data base a long text (about 2500 chars) input by my users using a web form and passed to the server using php. When i look in phpmyadmin, the text gets crop. How can i config my table in order to get the complete text? This is my table config: CREATE TABLE `extra_879` ( `id` bigint(20) NOT NULL auto_increment, `id_user` bigint(20) NOT NULL, `title` varchar(300) NOT NULL, `content` varchar(3000) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `id_user` (`id_user`) ) ENGINE

问题 I'm building a WordPress website. With a MySql Query I load all companies from my database that have a specific brand: $results = $wpdb->get_results("SELECT * FROM $wpdb->postmeta WHERE meta_key = 'brand'")` brand is an array so I search for a specific value in array: $brand = $_GET['brand']; $brandNeedle = $brand; if(in_array($brandNeedle, $brand[0])) Now, my client asked to list all users that are connected to all those companies that are selected. So I need to create a new query.