This is for an update field and I am checking to be sure the number AND keyword -> OR the campaign name exist to prevent duplicates.
This query is not acting as expected:
$STH = $DBH->prepare("
SELECT *
FROM campaigns
WHERE number = :number AND keyword = :keyword
OR name LIKE :name"
);
I want it to check if (number=number AND keyword=keyword) OR (name=name) - As two different statements not related to eachother. Even if I wrap them in brackets I still get not the right results.
Any help?
LIKE Also needs to have % if it is not supposed to work like = Operator
SELECT * FROM campaigns WHERE (number = :number AND keyword = :keyword) OR name LIKE %:name%"
try it like that
$STH = $DBH->prepare("SELECT *
FROM campaigns
WHERE (number = :number AND keyword = :keyword)
OR name LIKE :name"
);
Related
I'm trying to call a random row from a table where the column "activePages" features a certain id number.
For example, activePages might contain "123 456" on one row, "456 789" on another and I use the following code:
SELECT * FROM advertising WHERE activePages LIKE %456% ORDER BY rand() LIMIT 1
...To call one of those two rows at random.
I want to do this same thing, but with a variable in place of "456". Where do I need to put the % for this to work? Or am I missing another problem entirely?
This is what I have right now:
$getad = $pdo->prepare('SELECT * FROM advertising WHERE activePages LIKE :id ORDER BY rand() LIMIT 1');
$getad->execute(['id' => $id]);
You can use this sort of CONCAT() construct.
WHERE COLUMN LIKE concat('%', :id, '%')
You can put anything you need into CONCAT(), so it's quite flexible.
Wrote a quick test to verify some other posts on SO. Adding the % to the PHP variable works for the like comparison.
<?php
$id = "%" . $searchTerm . "%";
$sql = "SELECT * FROM TABLE
WHERE COLUMN LIKE :id";
$stmt->execute([':id'=> $id]);
?>
I have mysql column called categories. It can contain single or multiple values like this: 1 or 2 or 1,2,3 or 2,12...
I try to get all rows containing value 2.
$query = "SELECT * FROM my_table WHERE categories LIKE '2'";
$rows = mysql_query($query);
This returns row if column only has value 2 but not 1,2,3 or 2,12. How I can get all rows including value 2?
You can use either of the following:
% is a wildcard so it will match 2 or 1,2, etc. Anything on either side of a 2. The problem is it could match 21, 22, etc.
$query = "SELECT * FROM my_table WHERE categories LIKE '%2%'";
Instead you should consider the find_in_set mysql function which expects a comma separated list for the value.
$query = "SELECT * FROM my_table WHERE find_in_set('2', `categories`)";
Like #jitendrapurohut said, you can do it using
$query = "SELECT * FROM my_table WHERE categories LIKE '%2%'";
$rows = mysql_query($query);
But is really bad to store collections like this. A better aproach is as follow:
categories(id_c, name) => A table with each category
my_table(id_m [, ...])
categories_my_table(id_c, id_m)
Then use this query:
SELECT *
FROM my_table m
INNER JOIN categories_my_table cm ON m.id_m = cm.id_m
INNER JOIN categories c ON cm.id_c = c.id_c
WHERE
c.id_c = 2;
EDIT:
#e4c5 link explains why it is bad to store collections like this...
SELECT * FROM my_table WHERE categories LIKE '%2%' AND categories!='1,2,3' AND categories!='2,12';
i want to query several records by id like:
$ids = array(10,12,14,16,....);
the query would be something like:
select * from users where id=10 or id=12 or id=14 or id=16 ..
is it possible to query it in a more comfortable way like (compared to php):
select * from user where in_array(id, array(10,12,14,16))
thanks
You can use IN instead of OR clauses
select * from users where id IN (put_your_array_here)
Example:
select * from users where id IN (10,12,14,16);
Note:
According to the manual for MySQL if the values are constant IN
sorts the list and then uses a binary search. I would imagine that
OR evaluates them one by one in no particular order. So IN is
faster in some circumstances.
Related post
Try this.
$id = array(10,12,14,16,....);
$ids = join("','",$id);
$sql = "select * from user where id IN ('$ids')";
OR
$ids = implode(',', $id);
$sql = "select * from user where id IN ($ids)";
You can do it like that using implode in PHP:
"select * from users where id in '".implode("','", $ids)."'"
Please be sure that your ids are safe though
I am retrieving data from a database with php and MySQL as follows
$query = mysql_query("SELECT * FROM pictures WHERE (title LIKE '%$Search%' OR keywords LIKE '%$Search%') AND approved = 'YES' ORDER BY title ASC");
The query is correct and there are no errors and the query works fine for "title LIKE '%$Search%'" but the parameter "OR keywords LIKE '%$Search%'" is not retrieving data. The parameter "AND" also works correctly.
The keywords are stored in the database for example "pizza, restaurants, take away" but I don't see that is a problem.
My question is "What is the correct syntax for applying the "OR" parameter?
Remove the brackets around (title LIKE '%$Search%' OR keywords LIKE '%$Search%')
Those are generally used for subqueries.
$query = mysql_query("
SELECT * FROM pictures
WHERE title LIKE '%$Search%'
OR keywords LIKE '%$Search%'
AND approved = 'YES'
ORDER BY title ASC
");
https://dev.mysql.com/doc/refman/5.0/en/subqueries.html
Here is an example of a subquery, and pulled from the manual on MySQL.com:
SELECT * FROM t1 WHERE column1 = (SELECT column1 FROM t2);
Edit:
Or try a different quoting method:
$query = mysql_query("
SELECT * FROM pictures
WHERE title LIKE '".%$Search%."'
OR keywords LIKE '".%$Search%."'
AND approved = 'YES'
ORDER BY title ASC
");
You could also try escaping your data:
$Search = mysql_real_escape_string($Search);
as an example. I don't know how you're assigning that variable.
phpMyAdmin test edit:
This is what I used inside phpMyAdmin:
SELECT * FROM table
WHERE col1 LIKE '%pizza%'
OR col2 LIKE '%pizza%'
AND col3 = 'YES'
ORDER BY col1 ASC
using pizza as the search keyword seeing that $Search will be based on the same keyword for you, where columns contain "large pizza" in one, and "pizza, take away, restaurants" in another.
Remember that, whatever you're using/assigning $Search to, must reside inside all your queried columns.
You may also want to make use of explode().
Here is an example pulled from https://stackoverflow.com/a/15289777/
<?php
$search = 'Gold Chain Shirt';
$bits = explode(' ', $search);
$sql = "SELECT name FROM product WHERE name LIKE '%" . implode("%' OR name LIKE '%", $bits) . "%'";
The above will generate this query:
SELECT name FROM product WHERE name LIKE '%Gold%' OR name LIKE '%Chain%' OR name LIKE '%Shirt%'
Sorry for taking some time but this is my working answer to my own question... not the prettiest syntax but it works without any string functions or explode functions. MySql can handle keywords quite well without any other functions being included:
$query = mysql_query("SELECT * FROM pictures
WHERE
title LIKE '%$Search%' AND featured IS NOT NULL AND streetview IS NOT NULL AND (id_user > '1') AND (status = '1')
OR
keywords LIKE '%$Search%' AND featured IS NOT NULL AND streetview IS NOT NULL AND (id_user > '1') AND (status = '1') ORDER BY title ASC");
Thank you all for your contributions
I am trying to do a query in PHP PDO where it will grab a simple result. So like in my query I need it to find the row where the column group is 'Admin' and show what ever is in the group column. I know that we already know what it should be [Should be admin] but just need to get the query to work. Its only grabbing 1 row from my table, so will I need forsearch?
If I change WHERE group = 'Admin' to WHERE id = '1' it works fine. But I need it so it can be where group = 'admin'
$sql2 = "SELECT * FROM groups WHERE group = 'Admin'";
$stm2 = $dbh->prepare($sql2);
$stm2->execute();
$users2 = $stm2->fetchAll();
foreach ($users2 as $row2) {
print ' '. $row2["group"] .' ';
}
Thanks
group is a reserved word in MySQL, that's why it's not working. In general it's a bad idea to use reserved words for your column and table names.
Try using backticks around group in your query to get around this, so:
$sql2 = "SELECT * FROM groups WHERE `group` = 'Admin'";
Also you should really use placeholders for values, because you're already using prepared statement it's a small change.
Edit: just to clarify my last remark about the placeholders. I mean something like this:
$sql2 = "SELECT * FROM groups WHERE `group` = ?";
$stm2->execute(array('Admin'));
try to use wildcard in your WHERE Clause:
$sql2 = "SELECT * FROM groups WHERE group LIKE '%Admin%'";
Since the value in your table is not really Admin but Administrator then using LIKE and wildcard would search the records which contains admin.