outer-join

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Is a FULL OUTER JOIN neccessary for this situation?

I\'m trying to find an alternative to using a FULL OUTER JOIN for a stored procedure I am writing. Here\'s the scenario.[详细]

2023-02-13 23:12 分类：问答
Nested subquery is too slow - outer join equivalent?

I\'m collecting some basic statistics on our codebase and am trying to generate a query using the following schema data[详细]

2023-02-10 16:27 分类：问答
ActiveRecord joins syntax

I need to express the following join condition using ActiveRecord: SELECT ... FROM U LEFT OUTER JOIN F ON U.key = F.foreign_key[详细]

2023-02-08 03:46 分类：问答
Need help with a sql query that has an inner and outer join

I really need help getting this query right. I can\'t share actual table and column names, but will try my best to layout the problem simply.[详细]

2023-02-06 22:57 分类：问答
Using Joined-Tables to exclude certain records

I have a SQL Server 2005 table (#1) that list employee names, and various info about each of them. I have a second table (#2) that lists some of the employees that I wish to exclude from my results.[详细]

2023-02-06 16:08 分类：问答
Conversion of legacy outer join to ANSI

I have come across the following legacy PL/SQL and find the outer joins against scalar constants somewhat confusing.First of all, can someone please confirm that my attempt to convert this to ANSI is[详细]

2023-02-06 12:18 分类：问答
How can I do a FULL OUTER JOIN in MySQL?

I want to do a full outer join in MySQL. Is this possible? Is a 开发者_运维问答full outer join supported by MySQL?You don\'t have full joins in MySQL, but you can sure emulate them.[详细]

2023-02-06 12:14 分类：问答
Cross join behaviour (SQLServer 2008)

I have been trying to track down a problem with a query I have.The query is actually generated by hibernate from HQL but the resulting SQL doesn\'t do what I expect.Modifying the SQL slightly produces[详细]

2023-02-06 05:32 分类：问答
Hibernate LEFT OUTER JOIN with DetachedCriteria

I am trying to transform the following SQL into Hibernate DetachedCriteria: SELECT students0_.courseId AS courseId2_1_,[详细]

2023-02-04 08:27 分类：问答
Performing an outer join on two Ruby Arrays

Let\'s say I have two Arrays in Ruby, containing user IDs. These are the old users: == old == 1 2 3 4 And these are the new:[详细]

2023-02-02 02:42 分类：问答