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  1. Hi I have a question, but no real example yet. I wonder if someone can tell how to create a serial number that counts from 10000 to 100000 en divide it as a unique id over several databases and table.columns? I dont want to have an example with uniqid() , but counting up with one. I have no clue how to do this can someone please give any suggestion?
  2. BACKGROUND: i have created a search box for users to query the Grammar Captive database with Natural Language functionality. As the query string results in a single variable that is read into an AGAINST statement (see below), I am concerned about the overall safety of my database and web application. QUESTION ONE: Is it possible to write a prepared statement with the value of an AGAINST clause as an unknown? If not, what must one do in order to prevent against SQL injection? WHAT I HAVE CREATED SELECT letter_no, letter_title, letter_abstract, submission_date, revision_date,
  3. Hi. This is the table output I have while using SELECT. Now I want to DELETE all records , except those from the last 3 hours. I tried mysql combined with now() and I tried this: SELECT * FROM `my_tab` WHERE SEC_TO_TIME(-10800) > `created_on` If someone can give the right setup how to do this in PHP/MYSQL then I would be very happy.
  4. If I use the following commands: ALTER TABLE yourtab CHANGE `$colname1` `$colname2` VARCHAR(20) NOT NULL; ALTER TABLE yourtab MODIFY `$colname1` `$colname2` VARCHAR(20) NOT NULL; ALTER TABLE yourtab CHANGE COLUMN `$colname1` `$colname2` VARCHAR(20) NOT NULL; And because I use a variable inside a loop I can change an array of column names. The challenge I'm facing is that VARCHAR or other type formats are obviously obliged. is that true? Is there a possibility to change a column name and keep the type set as the original table create settings?
  5. I can not fix this script, because the output is not in sync. I have 3 arrays. 1) present column names. 2) prefix (fixed name). 3) suffix (uniqid value). Can someone explain how exactly I should create a foreach loop in a foreach loop with 3 arrays and fetching the field value from the get_result command as the the value it is related to. This would result in: <---->Present Column Name <-----> New Column Name <---->value1 <--------------------------------> value1_abcd <---->value2 <------------------------------> value2_abc
  6. BACKGROUND: I am in the process of writing a class that will match and update rows in a MySQL data base. The field that contains the values against which a match is to be discovered must be indefinite. The values that it can contain are either 0 or 1 as defined by an ENUM field type. I know both the desired field and value before the matching routine commences. I want the UPDATE routine to set the value of the field to its opposite: 0 => 1 or 1 => 0. CURRENT STATE OF THE CODE: <?php class VeriFirm { private $mysqli_obj; private $username; private $email; priva
  7. This isn't a bug or a how too inquiry, I know how to order items with mysql queries. What I am wondering though is, how does mysql determine what result goes first between 2 matching results? A quick example, I do a SQL Query ordering by "total wins", so a numeric value. 2 people have 7 wins each, how does the SQL Query determine the order for the 2 people? In my testing of leagues that am coding, I actually have two divisions of 8 people with 7 wins/ 7 losses each, always showing on leaderboard at same position. I am thinking its ordered by who was added first
  8. PROBLEM: Turn a two-step SELECT procedure into a one-step procedure. The two-step procedure is 1) Discover with a query to a parent table what other rows in the parent table are related to the queried row. 2) Obtain selected data for the queried row and other related rows from the parent table and a child table that are connected by a FOREIGN KEY. BACKGROUND: I have two tables -- a parent (parent_table) and a child (child_table) table - connected by a valid FOREIGN KEY and an additional table (ref_table) that contains information about the relationship among the rows of both
  9. My question is, if it is possible, to change the name of the column with MYSQL. (not with php) This is my example: mysql> select * from horses; +------------+---------------+-----------------------+---------------------+---------------------+-----------------------------+ | num | name | location | created_day | changed_day | key_value | +------------+---------------+-----------------------+---------------------+---------------------+-----------------------------+ | 1 | Horse Riding | http://www.camping.fr | 2
  10. I have 2 tables. A table full of items with an ID number and various values (Table A) and a table which works as the basis for an Item comparison using the ItemID's (Table B ) Table A ItemID, Item_Name, Value_1 1, Potato, 50 2, Carrot, 45 3, Broccoli, 35... Table B ComparisonID, ItemID1, ItemID2 1, 1, 3 2, 2 ,3 3, 5, 145 Requirement: I want to return the ItemID, Item Name and Value for each row in Table B like so Results: ItemID1, Item_Name, Value_1, ItemID2, Item_Name, Value_1 1, Potato, 50, 3, Broccoli, 35
  11. Hello folks, I want to hide a text inside a image(users given image using file upload). Thanks in advance
  12. QUESTION ONE: What is it called when you traverse an entire table in equal multiples of records? (I ask this question, because I have been fraught with frustration in my google searches.) QUESTION TWO: Do you know a routine that I can copy and modify? (This would greatly simply my search.) BACKGROUND: Surely there must be a standard routine for performing the following procedure: 1) Use PHP to read and display the first ten records of a MySQL table. 2) Read and display the next ten records of the same data table. 3) Either return to the previously read ten record
  13. $text = "i am a student of oxford university, and i love to tell everyone how much i have enjoyed my four years in school. the whole environment was really welcoming" . Actually, we have a database table called "text_word". So, i want a script that will search through the above text and check if any of those words from the above text does not exist in the "text_word" table, such word should be replaced by asterisks and store the replaced word into a separate column called "unmatched_word" in the same "text_word" table. let's assume the word "welcoming" was not existing in my datab
  14. QUESTION ONE: How does one suppress duplicate row entries? QUESTION TWO: In the following case what is causing them to occur? BACKGROUND: I created several tables only to discover that they were not as I wanted them. AFter truncateng each, I dropped what I believed to be poorly structured columns, rearranged some, and added still others. When I tested the result, everything worked great except for one problem -- a single table entry reuslted in duplicate rows. THE TABLE STRUCTURE CREATE TABLE 'table_name' (obs` int(5) NOT NULL AUTO_INCREMENT . . . PRIMARY KEY (`obs
  15. 1) I have login scripts working in combination with database table and verify_password 2) the login scripts are RE-USED for another site 3) In the test fase I use the SAME database table values and copy these in phpmyadmin to a new table is it possible there is some kind of copy security or whatever in the encrypted original table values? I presume this because there is no password_verify match. It could be I'm overlooking something, but the password_verify($form_pw, $database_pw) procedure, does not need encryption BEFORE $form_pw is read? The only conclusion then is:
  16. Hey guys, I have a problem. I want to write a record in my db when it does not already exists. For this, i have been looking on the web and found multiple solutions on Stackoverflow. The one I use is proved working, by the stack user however I get my die response :(. I use the following query (mysql/php): $query= "IF NOT EXISTS (SELECT * FROM tasksmade WHERE teamnumber='$teamnumber' AND tasknumber='$tasknumber' AND date='$date') INSERT INTO tasksmade (teamnumber, tasknumber, taskfinished, date) VALUES ('$teamnumber', '$tasknumber', '$taskfinished', '$date')";
  17. Hi all, I have a question about join or inner join; not sure in what way it should be used. I now use 2 queries in 2 different databases (made in phpmyadmin). SELECT `title` FROM `writers` WHERE id ='qwert58efedd1979f'; SELECT `name`, `lastname`, `str`, `nr`,` place` FROM `client` WHERE id ='qwert58efedd1979f'; I would like to make one mysql query and use join to search in 2 tables in 2 different databases. Can anyone tell how mysql does this?
  18. Hello folks, I installed a XAMPP Version 7.0.15 on my windows 7(32-bit) computer but it doesn't work properly.When i open in the browser it shows "The site can't be reached". What's the solution for it? please help me. Thank you in Advance..
  19. Hi, i'm new and i hope not wrong with to ask the following question: i see this instruction SELECT * INTO CustomersBackup2013 IN 'Backup.mdb' FROM Customers; in thee site, that is in a section of copy from sql (to mdb, i thougt since the db name is backup.mdb). I'm looking for the similar command for copy/create the similar command but for mysql as origin and mdb as destination. Thanks of all.
  20. is there a way to make a singular login for a wordpress website that also logs a person into the forums and the wiki at the same time?
  21. darbok

    connecting to msqli

    Looking at how form items are put into a mysql table, the part that seems daunting is if ones form has like 50 items... having to list all those IDs with their variables makes me wonder if there is a better way or if its just " it up buttercup.".
  22. So my question is: how can I insert variables into my mysql queries in php? This is my code now, I would like to use the $me and the $friend variables to work in the sql query: function newChat($me, $friend) { global $conn; $sql = "SELECT id FROM chats WHERE (person1 = $me AND person2 = $friend) OR (person1 = $friend AND person2 = $me);"; mysqli_query($conn, $sql) or die('Error querying database.'); echo "check <br />"; $result = mysqli_query($conn, $sql); $row = mysqli_fetch_array($result); while ($row = mysqli_fetch_arra
  23. In phpmyadmin I did the following query and had it output in php like this: $sql = "UPDATE `table` SET count = count + 1 WHERE unique_nr = 5175781"; this all worked well. though when I tried to implement it in my script I had an error: script: <?php // code to establish dbase connection: var_dump($unique_nr); // $stmt = $conn->prepare('UPDATE table SET count = ? WHERE unique_nr = ? '); $stmt = $conn->prepare('UPDATE table SET count = count + 1 WHERE unique_nr = ? '); $stmt->bind_param("is", $count, $unique_nr); $stmt->execute(); ?> res
  24. MySQL queries are not working only inside this block: ... if (isset($_POST['send'])) { } ... The variable itself is set and transferred from the form. What could be the reasons of this and how is better to check?
  25. Dear all, For photo gallery tables (named: gallery_album, gallery_image, gallery_relation), I have seen a recommendation to use InnoDB engine in preference to MyISAM. I thought MyISAM would be the choice for all tables but tables for transactions. Do you agree with the recommendation to using InnoDB for photo gallery tables and why?
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