in-clause

I receive a list of UserIds(about 1000 at a time) sorted by 'Income'. I have User records in "my system's database" but the 'Income' column is not there. I want to retrieve the Users from "my system's database" in the Sorted Order as received in the list. I tried doing the following using Active Record expecting that the records would be retrieved in the same order as in the Sorted List but it does not work. //PSEUDO CODE User.all(:conditions => {:id => [SORTED LIST]}) I found an answer to a similar question at the link below, but am not sure how to implement the suggested solution using

I have to run a query like this (query 1) - select something from sometable where someId in (1,2,3) I would like to keep a variable for the IDs part, like this (query 2) - set @myIds = "1,2,3"; select something from sometable where someId in (@myIds); But this does not give the expected result (gives an empty result set), and no query error as well. I checked that if I wrap the comma separated IDs inside quotes, the query results an empty result set (query 3) - select something from sometable where someId in ("1,2,3"); I guess when I am using variable @myIds like I showed above (query 2), it

Does anyone know how I can make an IN clause behave in a case sensitive manner? I have seen that COLLATE can be used with LIKE for string searching but I don't know if or how it can be used with IN. For example I want to do something like SELECT * FROM pages_table WHERE topic IN ('Food','NightLife','Drinks') And I want it to return pages where the topic is 'Food' but not those where the topic is 'food' which is currently what happens on this query. Thanks. You can actually use it as you have likely seen in other examples: SELECT * FROM pages_table WHERE CAST(topic AS CHAR CHARACTER SET latin1)

I have a table hotel [hotelid,hotelname,etc] and another table facilities[facilityid,facilityname] these 2 tables are linked through table hotel_to_facilities_map[hotelid,facility_id] so the table hotel_to_facilities_map might contain values as hotelid facility_id ------------------- 1 3 1 5 1 6 2 6 2 2 2 5 now i want to retrieve all the hotels which match ALL facilities asked for select * from hotel_to_facilities_map where facility_id IN (3,5,2) but this will cause the match as an OR Expression while i need AND . is there any workaround or solution for this? select hotelid from hotel_to

I have a table called players as follows: First_Id Second_Id Name 1 1 Durant 2 1 Kobe 1 2 Lebron 2 2 Dwight 1 3 Dirk I wish to write a select statement on this table to retrieve all rows whose first ids and second ids match a bunch of specified first and second ids. So for example, I wish to select all rows whose first and second ids are as follows: (1,1), (1,2) and (1,3). This would retreive the following 3 rows: First_Id Second_Id Name 1 1 Durant 1 2 Lebron 1 3 Dirk Is it possible to write a select query in a manner such as: SELECT * FROM PLAYERS WHERE (First_Id, Second_Id) IN ((1,1), (1,2)