mysql-error-1066 | 易学教程

Was: Not unique table :: Now: #1054 - Unknown column - can't understand why?

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问题 I'm trying to join some tables together in MySQL, but I seem to get an error saying: #1066 - Not unique table/alias: 'calendar_jobs' I really want it to select everything from the cal_events, the 2 user bits and just the destination col from the jobs table, but become "null" if there arn't any job. A right join seemed to fit the bill but doesn't work! Can anyone help!? UPDATE: Thanks for the help on the previous query, I'm now up to this: SELECT calendar_events.* , calendar_users

Searching and sorting by related model in Yii with CGridView when Relation is a key in the same table

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问题 There is a comprehensive article about searching and sorting by related model in CGridView here: http://www.yiiframework.com/wiki/281/searching-and-sorting-by-related-model-in-cgridview/ I've successfully implemented this recipe a number of times. However, now I am trying to search and sort by a relation that is in the same table (it defines the parent_id). See 'parent' relation below: public function relations() { return array( 'parent' => array(self::BELONGS_TO, 'Category', 'parent_id'),

mysql error 1066

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问题 $id=$_GET["id"]; $query= " SELECT blomster_produkter.blomster_produkt_id, blomster_produkter.blomster_produkt_navn, blomster_produkter.blomster_produkt_pris FROM blomster_produkter INNER JOIN blomster_produkter ON blomster_produkter.FK_blomster_produkt_id=blomster_produkter.blomster_produkt_navn blomster_produkter.FK_blomster_produkt_id=blomster_produkter.blomster_produkt_pris blomster_produkter.FK_blomster_produkt_id=blomster_produkter.blomster_produkt_id WHERE FK_blomster_kategori_id=$id";

Mysql JOIN of four tables with two key tables

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Error #1066 - Not unique table/alias in MySQL

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问题 I am having problem in my SQL statement, I get the error #1066 - Not unique table/alias: 'students' Below is my code: SELECT batches.*,students.*, courses.course_name AS course_name, count(DISTINCT IF(attendances.student_id = students.id AND attendances.permitted = 0,attendances.id ,NULL)) AS absents_count, count(DISTINCT IF(batches.id = students.batch_id ,students.id ,NULL)) AS students_count, count(DISTINCT IF(attendances.student_id = students.id AND attendances.permitted = 1,attendances.id

Help with MySQL Query syntax: ERROR #1066 - Not unique table/alias

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问题 I have four tables, user , user_billingprofile , user_shippingprofile , and user_address . user: userId, dateCreated user_billingprofile: userId, address user_shippingprofile: userId, address user_address: random address crap Here is the query I have to get a users billing and shipping profiles in one shot. SELECT * FROM `user` JOIN `user_billingprofile` ON `user`.`userId` = `user_billingprofile`.`userId` JOIN `user_address` ON `user_billingprofile`.`currentAddress` = `user_address`.

Not unique table/alias

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I get the error ERROR 1066 (42000): Not unique table/alias: I cant figure out whats wrong with it. SELECT Project_Assigned.ProjectID, Project_Title, Account.Account_ID, Username, Access_Type FROM Project_Assigned JOIN Account ON Project_Assigned.AccountID = Account.Account_ID JOIN Project ON Project_Assigned.ProjectID = Project.Project_ID where Access_Type = 'Client'; Try SELECT pa.ProjectID, p.Project_Title, a.Account_ID, a.Username, a.Access_Type, c.First_Name, c.Last_Name FROM Project_Assigned pa INNER JOIN Account a ON pa.AccountID = a.Account_ID INNER JOIN Project p ON pa.ProjectID = p

Not unique table/alias

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问题 I get the error ERROR 1066 (42000): Not unique table/alias: I cant figure out whats wrong with it. SELECT Project_Assigned.ProjectID, Project_Title, Account.Account_ID, Username, Access_Type FROM Project_Assigned JOIN Account ON Project_Assigned.AccountID = Account.Account_ID JOIN Project ON Project_Assigned.ProjectID = Project.Project_ID where Access_Type = 'Client'; 回答1: Try SELECT pa.ProjectID, p.Project_Title, a.Account_ID, a.Username, a.Access_Type, c.First_Name, c.Last_Name FROM Project

Why does this SQL code give error 1066 (Not unique table/alias: 'user')?

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This is my table structure: The error message is: #1066 - Not unique table/alias: 'user' The following is my code. SELECT article.* , section.title, category.title, user.name, user.name FROM article INNER JOIN section ON article.section_id = section.id INNER JOIN category ON article.category_id = category.id INNER JOIN user ON article.author_id = user.id LEFT JOIN user ON article.modified_by = user.id WHERE article.id = '1' You need to give the user table an alias the second time you join to it e.g. SELECT article . * , section.title, category.title, user.name, u2.name FROM article INNER JOIN

Why does this SQL code give error 1066 (Not unique table/alias: 'user')?

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问题 This is my table structure: The error message is: #1066 - Not unique table/alias: \'user\' The following is my code. SELECT article.* , section.title, category.title, user.name, user.name FROM article INNER JOIN section ON article.section_id = section.id INNER JOIN category ON article.category_id = category.id INNER JOIN user ON article.author_id = user.id LEFT JOIN user ON article.modified_by = user.id WHERE article.id = \'1\' 回答1: You need to give the user table an alias the second time you