composite-key
How to map a bag with composite key with NHibernate
Im trying to map two objects with NHibernate This is my first object \"Asociado\" composed by \"Justificaciones\", next to it is \"Justificacion\" which has a composed key[详细]
2023-04-13 06:13 分类:问答composite key related query
Say there is a composite key on col1,col2,col3,col4 for a table, when I use col2,col3 in an sql query index is not firing and is going for full table scan.(Reason could be col2,col3 may not be driving[详细]
2023-04-13 05:32 分类:问答Populate a DropdownList with composite key records in MVC3.net?
I don\'t know if I\'m missing something obvious, but I really want to grab names of clients associated with a composite key.[详细]
2023-04-12 00:17 分类:问答Slow insertion speed on MYISAM table
I need to create a table containing two attributes: id and author. These two attributes form the composite key. Moreover I need to perform an index search on the author field.[详细]
2023-04-07 04:31 分类:问答how to use foreign keys as primary key
i have a table with two foreign keys as composite key. ActivityTbl - (activityNbr(PK), supervisor(FK), status, type, startDate, endDate, location )[详细]
2023-04-05 12:15 分类:问答MySql query not using composite indices
I have matching Btree indices on 2 tables, but the explain plan says the engine is doing a full scan on one of the tab开发者_如何学Cles and it is very slow. When deployed both will start with ~750,000[详细]
2023-04-05 00:49 分类:问答GRAILS Multiple composite foreign keys sharing the same table field?
I\'m trying to use grails with an existing old style legacy db. I have composite keys everywhere (PK and FK) and... more FK sharing the same table column. An example:[详细]
2023-04-03 21:51 分类:问答JPA: InvalidStateException Error + Composite Key/EmbeddableId/Sequence Generated IDs
I currently have a schema set up with my database and Java Application using OpenJPA that works most of the time, but sometimes I get the error for a few users:[详细]
2023-04-01 10:58 分类:问答How to use NOT EXISTS with COMPOSITE KEYS in SQL for inserting data from POJO
I am using DB2 DBMS. Scenario 1: myTable has a composite key (key1, key2) where both key1 and key2 are foreign keys from yourTable.[详细]
2023-03-30 00:11 分类:问答How Do You Update a Navigation Property for an Entity With a Composite Key?
I\'m having a problem using WCF Data Services for an entity that has a composite primary key. I\'m using the Silverlight 4 Business Application Template and have created an Entity Data Model (EDM) aga[详细]
2023-03-24 02:28 分类:问答