As @Devart says, the total length of your index is too long. The short answer is that you shouldn’t be indexing such long VARCHAR columns anyway, because the index will be very bulky and inefficient. The best practice is to use prefix indexes so you’re only indexing a left substring of the data. Most of … Read more
Unfortunately, phpMyAdmin is one of the first php application that talk to MySQL about charset correctly. Your problem is most likely due to the fact that the database does not store the correct UTF-8 strings at first place. In order to correctly display the characters correctly in phpMyAdmin, the data must be correctly stored in … Read more
That combination of username, host, and password is not allowed to connect to the server. Verify the permission tables (reloading grants if required) on the server and that you’re connecting to the correct server.
As stated here: Two most common reasons (and fixes) for the MySQL server has gone away (error 2006) are: Server timed out and closed the connection. How to fix: check that wait_timeout variable in your mysqld’s my.cnf configuration file is large enough. On Debian: sudo nano /etc/mysql/my.cnf, set wait_timeout = 600 seconds (you can tweak/decrease … Read more
Set / change / reset the MySQL root password on Ubuntu Linux. Enter the following lines in your terminal. Stop the MySQL Server: sudo /etc/init.d/mysql stop Start the mysqld configuration: sudo mysqld –skip-grant-tables & In some cases, you’ve to create the /var/run/mysqld first: sudo mkdir -v /var/run/mysqld && sudo chown mysql /var/run/mysqld Login to MySQL … Read more
I have a look into my glass spehre, but I bet you have to activate the mod_rewrite-Modul of Apache2.
I have an example of similar thing for saving username and password,try modifying according to your idea. The process is very similar. //Layout of Activity <?xml version=”1.0″ encoding=”utf-8″?> <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:tools=”http://schemas.android.com/tools” android:layout_width=”match_parent” android:layout_height=”match_parent” android:padding=”2dp” tools:context=”com.test.test.ScreenOne”> <EditText android:layout_width=”240dp” android:layout_height=”wrap_content” android:id=”@+id/etUsername” android:layout_marginTop=”150dp” android:hint=”username” android:layout_alignParentTop=”true” android:layout_centerHorizontal=”true” /> <EditText android:layout_width=”240dp” android:layout_height=”wrap_content” android:id=”@+id/etPassword” android:hint=”password” android:layout_below=”@+id/etUsername” android:layout_centerHorizontal=”true” /> <Button android:layout_width=”wrap_content” android:layout_height=”wrap_content” … Read more
You could do something like: $oldcw = NULL; foreach($users as $user) { if($oldcw){ $newcw = $oldcw; $oldcw = NULL; }else{ $newcw = mt_rand(1, 52); $oldcw = $newcw; } …. }
Assuming that you have a time_in column in the table time_in if($stmt = $dbconnect->prepare(“SELECT time_in from time_in”)){ $stmt->bind_param(“s”, $time_in); $stmt->execute(); $cur_time = time(); if($time_in === $cur_time){ echo “Teacher is on time”; } } This is mainly an idea about how things should be going. There’s always room for improvement. To be precise, you should give … Read more
Your query would be: SELECT PRESENT, WHOLEDAY, CASE WHEN (PRESENT = 1 AND WHOLEDAY = 1) THEN 1 WHEN (PRESENT = 1 AND WHOLEDAY = 0) THEN 0.5 ELSE 0 END as ATTENDANCE FROM MY_TABLE Case Syntax is : CASE WHEN condition_1 THEN commands WHEN condition_2 THEN commands … ELSE commands END CASE;