当while循环为true时,我如何中断while循环和for循环?
<?php
for($i=0; $i<4; $i++){
$result = mysql_query("SELECT * FROM table WHERE weight='$i'");
while($row = mysql_fetch_array($result)){
echo $row['cell'];
break; //I need to break the while loop and the for loop
Try
Dim conn As New MySql.Data.MySqlClient.MySqlConnection(myConnectionString)
conn.Open()
dbQuery = "select * from main_table"
myCommand.CommandText = dbQuery
myCommand.Connection = conn
Dim myReader As MySqlDataReader
myReader = myCommand.ExecuteReader()
While myRe
嗯,我正在制作一个游戏网站,我有一个搜索栏,用户可以在其中键入他想要查找的游戏。我有这样的东西(这是一个测试,不需要阻止sql注入):
<?php
if ($_REQUEST['search']){
$searched = $_POST['searched'];
$gamesearched = mysql_query("SELECT * from games WHERE name like '%$searched%'");
while($write=mysql_fetch_array($game
我把OS升级到高塞拉。
升级后,我发现一些服务不能正常工作,使用MySQL。
我试着通过
mysql -u根-p
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
因此,我试图通过以下方式重新启动mysql服务
brew服务启动mysql
Could not find domain for
Error: Failure while executing; `/bin/launchctl enable gui/503/hom
我找到了这一小段php代码来满足我的需求。
<?php
$allDocs = mysql_query("SELECT id, parent FROM modx_site_content ORDER BY id DESC");
while($doc = mysql_fetch_assoc($allDocs)) {
$parent = mysql_query("SELECT id FROM modx_site_content WHERE parent = " . $doc['id'] . " AND id = " . $doc[
我有一个很大的mysql表,我想使用python将其导出为csv文件。但是,当我使用cursor.fetchall()时,我的笔记本电脑挂起了,当我使用
cursor.execute("select * from table_name")
while True:
rows = cursor.fetchmany(1000);
while rows is not None:
with open(table_name + ".csv", "a+") as csvfile:
writer =
语句在while循环中不工作。
public void loginButton() throws ClassNotFoundException, SQLException{
Class.forName("com.mysql.jdbc.Driver");
Connection con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/finditdb","root","root");
Stat
我正在尝试使用Mysql中的分数表创建一个排行榜。我只使用我的分数表中的"name“和" score”。我可以显示按最佳分数排序的排行榜,但不能显示它的排名。下面是我用来获取数据的php文件:
// Connect to server and select database.
$con = mysqli_connect($host, $db_username, $db_password, $db_name);
// Retrieve data from database
$sql = "SELECT *
FROM scores
ORDE
我在一个页面上有一个查询,然后它会回显一个while循环来显示所有记录。我想将其限制为25,但也有一个动态的下一步/上一步按钮,这样我就可以跳过记录。我看过类似的东西,但我找不到它,也找不到我看到的教程。我是PHP新手,所以任何帮助都是很好的。
<?PHP
$result = mysql_query("SELECT id, firstname, surname FROM members WHERE createdby = '" . $_SESSION['myusername'] ."'");
if (!$result) {
当我收到超过100个并发请求时,mysql.connect()会产生一个“连接太多”的错误。我使用的是一个托管数据库,它没有为我提供root用户来增加连接限制。下面是我需要替换的临时修复。
import flaskext.mysql
@app.route("/filter")
def filter_ep():
# FIXME: hot fix for "too many connections" error
conn = None
errs = 0
while not conn and errs < 100:
我无法在我的Ubuntu18.04VPS上安装mysql-server。我已经做了sudo apt-get update && sudo apt-get upgrade,并多次清除了所有mysql包。运行sudo apt-get install mysql-server将产生以下结果:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
mysq
我使用下面的代码来显示mysql数据。问题是,当在HTML中显示数据时,数据显示在一行中,并且没有被包装。
<?php
//while($res = mysql_fetch_array($result)) { // mysql_fetch_array is deprecated, we need to use mysqli_fetch_array
while($res = mysqli_fetch_array($result)) {
echo "<tr>";
echo "<td>".$res['topi