join

问题 I'v got 4 tables involve in the query: the main table items holds items list suppliers that holds the item supplier INNER JOIN by id item_categories that holds the item category INNER JOIN by id and orders table that hold orders in the follow struct: id . . . items => a JSON that hold the items array in the order example of items JSON: { "10": { "name": "item 1", "step": "1", "price": "140", "amount": "4" }, "24": { "name": "item 2", "step": "1", "price": "6.2", "amount": "1" }, "35": { "name

问题 I have 2 tables as defined below. Reviews table id user_id review title datetime PeopleFollows table id user_id following_user_id datetime I want to run 1 query to get the top 10 results by datetime. So for instance, if I have the following data: Review table 1 user1 "This is my review" "title" 2011-01-10 2 user1 "Another review" "title again" 2011-01-08 People Follows table 1 user2 user1 2011-01-09 I want to get the results like this: Review id=2 People follows id=1 Review id = 1 The only

问题 Following the my question I have the following tables the first (Range) includes range of values and additional columns: row | From | To | Country .... -----|--------|---------|--------- 1 | 1200 | 1500 | 2 | 2200 | 2700 | 3 | 1700 | 1900 | 4 | 2100 | 2150 | ... The From and To are bigint and are exclusive. The Range table includes 1.8M records. Additional table (Values) contains 2.7M records and looks like: row | Value | More columns.... --------|--------|---------------- 1 | 1777 | 2 | 2122

问题 Hi everybody I'm trying to combine two MySQL queries into only one. I have two blocks, the FROM and the WHERE , I think they are the only ones needed in my case. FROM: FROM table1, table2, table3, table4, table5 WHERE: WHERE field1 = 1 AND (field2 = 3 OR field2 = 4) AND (table5.field3 <= 100000) AND (table5.field4 >= 1) AND (table5.field5 >= 1) AND (table5.field6 >= 60) AND table5.field2 = table4.id AND table5.field7 = table3.field8 AND table3.field9 = table1.field10 AND table3.field11 =

问题 I am trying to identify value from one column which does exist in another column in same table Sub query SELECT DISTINCT `Wear it With - Outfits 1` FROM `product list` WHERE `Wear it With - Outfits 1` NOT IN (SELECT `sku` FROM `product list`) ...returns result in 2.7287sec I tried to replace sub query by left join SELECT DISTINCT table1.`Wear it With - Outfits 1` FROM `product list` as table1 LEFT JOIN `product list` as table2 ON table1.`Wear it With - Outfits 1`=table2.sku WHERE table2.sku

问题 In database, I have following three tables, where User and Profile have many-to-many relationship and joined with User_Profile as follow: User User_Profile Profile ---- ------------ ------- user_id user_id profile_id user_name profile_id profile_description user_time Class UserHbm and ProfileHbm are used: @Entity @Table(name = "User") public class UserHbm { @Id @GeneratedValue(generator = "id-generator") @GenericGenerator(name = "id-generator", strategy = "com.xx.xxx.XXXSequenceGenerator",

问题 I have 2 lists Expressions and bindings (id = Expr), and trying to replace each expression with its equivalent from the bindings list in a new list called newE, where Expression = id .. Initially, I have only one expression: eq (div (add 2 7) (sub 5 2)) 3 I want to replace each identifier in this expression with its equivalent from the bindings list, so I tried to split this expression into a list of strings and removed brackets, to separate each identifier .. This is how I tried to implement

问题 I have 2 lists Expressions and bindings (id = Expr), and trying to replace each expression with its equivalent from the bindings list in a new list called newE, where Expression = id .. Initially, I have only one expression: eq (div (add 2 7) (sub 5 2)) 3 I want to replace each identifier in this expression with its equivalent from the bindings list, so I tried to split this expression into a list of strings and removed brackets, to separate each identifier .. This is how I tried to implement

问题 I have this query: @NamedQuery( name = "org.mygovscot.stars.model.UserNeed.findAll", query = "SELECT un FROM UserNeed un " + "LEFT JOIN FETCH un.services " ) With this mapping from Service to UserNeed: <set name="userNeeds" table="service_userNeed"> <key column="service_id"/> <many-to-many column="userNeed_id" class="UserNeed"/> </set> and this mapping from UserNeed to Service: <set name="services" table="service_userNeed"> <key column="userNeed_id"/> <many-to-many column="service_id" class=

问题 I have two RDDs both having two columns as (K,V). In the sources for those RDDs keys are appearing one under the other and for each row a different and distinct value is assigned to the keys. The text files to create RDDs are given at the bottom of this post. Keys are totally different in both RDDs and I would like to join two RDDs based on their values and try to find how many common values exist for each pair. e.g. I am trying to reach a result such as (1-5, 10) meaning that a key value of