inner-join

问题 I have four tables called attr, data, extradata and syst. I have to do multiple/nested inner joins to get some attributes from all 4 tables, and running into issues because of that. For some background, there is a column called 'ID' in 'data' table that I am obtaining by an inner join between data and extradata as follows: Select X.ID FROM data X INNER JOIN extradata XA ON X.dataID = XA.dataID WHERE X.data = 'condition1' and NOT XA.additionaldata = 'condition2' This ID has to be matched with

问题 I want to equal some table with Inner Join in Codeigniter. But I give some errors. I put below some codes in my controller. But I give an error like that: A Database Error Occurred Error Number: HY000/1096 No tables used SELECT * Filename: C:/xampp/htdocs/erp/system/database/DB_driver.php Line Number: 691 My Controller Inner Join Here: public function edit($cusId) { $this->lang->load('content', $this->session->userdata('people_lang')); $viewData = new stdClass(); $viewData->customer = $this-

问题 I have come up with two queries, both use an inner join on two different tables. Query 1 SELECT PRODUCTS.CODE, PRODUCTS.REFERENCE, PRODUCTS.TAXCAT, PRODUCTS.DISPLAY,PRODUCTS.NAME, PRODUCTS.PRICEBUY, PRODUCTS.PRICESELL, CATEGORIES.NAME AS CATEGORY FROM PRODUCTS INNER JOIN CATEGORIES ON PRODUCTS.CATEGORY = CATEGORIES.ID; Query 2 SELECT PRODUCTS.CODE, PRODUCTS.REFERENCE, PRODUCTS.TAXCAT, PRODUCTS.DISPLAY,PRODUCTS.NAME, PRODUCTS.PRICEBUY, PRODUCTS.PRICESELL,STOCKCURRENT.UNITS AS UNIT FROM

问题 Background: Hi there, first time posting a question so please excuse any wrongdoings... I have been given an assignment at university using ASP.NET and SQL Server, what we basically have to do is create a webform where we can select a political party via a radio button list bound to a SQL data source. Based on this selection, a drop-down list is then populated with a list of MPs who are a part of the party selected the radio button list. You can then select an MP and view his or her personal

问题 I have a 11 tables email1,email2,email3,email4,email5,email6,email7,email8,email9,email10,email11 and same column name Contact_Email with different email address <?php $con = mysql_connect("localhost","root",""); $db = mysql_select_db("email-db",$con); $sql = "SELECT Contact_Email FROM email1,email2,email3,email4"; $result = mysql_query($sql); while($row = mysql_fetch_array($result)) { ?> <tr> <td><? echo $row['Contact_Email']; ?></td> <td><? echo '<br>'; ?></td> </tr> <? } ?> actually I want

问题 I am executing an inner-join query using hibernate-session.createQuery() and I got the error: Feb 21, 2014 5:22:07 PM org.hibernate.hql.internal.ast.ErrorCounter reportError ERROR: line 1:151: unexpected token: on Feb 21, 2014 5:22:07 PM org.hibernate.hql.internal.ast.ErrorCounter reportError ERROR: line 1:151: unexpected token: on line 1:151: unexpected token: on at org.hibernate.hql.internal.antlr.HqlBaseParser.fromJoin(HqlBaseParser.java:1693) at org.hibernate.hql.internal.antlr

问题 I have a few tables that I am joining together and selecting various columns and sums from it and i want to combine the select statements so that all results are in the same results set. i currently have a query like: declare @year INT declare @month INT set @year = '2013' set @month = '08' select CAST(LEFT(b.name, 3) AS varchar(3))AS Region, a.model, sum(a.Number)AS Uniques from Table1 a inner join database2.....table2 b on a.code = b.code where Year(a.EventDate) = @year and Month(a

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . In a nutshell: How can I join two datatables on fields that VS only knows at runtime and I know all the time? Is there a solution like Dim result = From t1 In dt, t2 In dt2 _ Where t1.Field < DateTime > ("timestamp") = t2.Field < DateTime > ("samplestamp") Select t1, t2 The names of these tables are only known

问题 I want to do a query as follows from an Android SQLite db: select place.permit_name, local.local_distance from tblLocal local inner join tblPlaces place on place._id = local._id order by local.local_distance asc I'm trying to use query() , instead of rawQuery() . I don't know how to specify the INNER JOIN/ON. How do I do this? final String table = PlacesDataContract.PlacesDataEntry.TABLE_NAME; final String[] columns = { PlacesDataContract.PlacesDataEntry.COLUMN_NAME_PERMIT_NAME. ,

问题 I have the following tables on SQL: Mensajes IdMensaje (int) PK NOT NULL IdCliente (int) CorreoCliente (varchar(100)) CorreosAdicionales (varchar(MAX)) Tema (varchar(100)) Mensaje (varchar(MAX)) Fecha (date) Hora (time(5)) Archivos IdArchivo (int) PK NOT NULL IdMensaje (int) Nombre (varchar(200)) Foreign Key Mensajes.IdMensaje ON Archivos.IdMensaje If you are wondering what Mensajes.IdCliente is, yes, it has a foreign key with another table but that's another story First an intro... I'm