unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING error [duplicate]
try this echo $sqlupdate1 = “UPDATE table SET commodity_quantity=$qty WHERE user=””.$rows[“user’].”‘ “;
select
MySQL – Select the last inserted row easiest way
It would be best to have a TIMESTAMP column that defaults to CURRENT_TIMESTAMP .. it is the only true predictive behavior you can find here. The second-best thing you can do is ORDER BY ID DESC LIMIT 1 and hope the newest ID is the largest value.
SQL: how to select a single id (“row”) that meets multiple criteria from a single column
Try this: Select user_id from yourtable where ancestry in (‘England’, ‘France’, ‘Germany’) group by user_id having count(user_id) = 3 The last line means the user’s ancestry has all 3 countries.
MySQL : retrieve a large select by chunks
You could try using the LIMIT feature. If you do this: SELECT * FROM MyTable ORDER BY whatever LIMIT 0,1000 You’ll get the first 1,000 rows. The first LIMIT value (0) defines the starting row in the result set. It’s zero-indexed, so 0 means “the first row”. The second LIMIT value is the maximum number … Read more
How to change the text color of first select option
If the first item is to be used as a placeholder (empty value) and your select is required then you can use the :invalid pseudo-class to target it. select { -webkit-appearance: menulist-button; color: black; } select:invalid { color: green; } <select required> <option value=””>Item1</option> <option value=”Item2″>Item2</option> <option value=”Item3″>Item3</option> </select>
Oracle date difference to get number of years
I’d use months_between, possibly combined with floor: select floor(months_between(date ‘2012-10-10’, date ‘2011-10-10’) /12) from dual; select floor(months_between(date ‘2012-10-9’ , date ‘2011-10-10’) /12) from dual; floor makes sure you get down-rounded years. If you want the fractional parts, you obviously want to not use floor.
What is the default MySQL JOIN behaviour, INNER or OUTER?
In MySQL writing JOIN unqualified implies INNER JOIN. In other words the INNER in INNER JOIN is optional. INNER and CROSS are synonyms in MySQL. For clarity I write JOIN or INNER JOIN if I have a join condition and CROSS JOIN if I don’t have a condition. The allowed syntax for joins is described … Read more
quick selection of a random row from a large table in mysql
Grab all the id’s, pick a random one from it, and retrieve the full row. If you know the id’s are sequential without holes, you can just grab the max and calculate a random id. If there are holes here and there but mostly sequential values, and you don’t care about a slightly skewed randomness, … Read more
How to open the select input using jquery
This should work: var element = $(“select”)[0], worked = false; if (document.createEvent) { // all browsers var e = document.createEvent(“MouseEvents”); e.initMouseEvent(“mousedown”, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null); worked = element.dispatchEvent(e); } else if (element.fireEvent) { // ie worked = element.fireEvent(“onmousedown”); } if (!worked) { // unknown browser … Read more