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Top Forums Programming How to query one to many mysql Post 302252878 by pinkgladiator on Thursday 30th of October 2008 01:45:10 PM
Old 10-30-2008
How to query one to many mysql

Hi there,

I have a hierarchical database that include 4 tables. Table A is the parent of B, B is Parent of C, C is parent of D. If I want to query everything in D that is associated with A.name, how do I do that? Thanks!

YanYan
 

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CONFDB_KEY_CREATE(3)				    Corosync Cluster Engine Programmer's Manual 			      CONFDB_KEY_CREATE(3)

NAME
confdb_key_create - Add a new key/value pair to the Configuration Database SYNOPSIS
#include <corosync/confdb.h> confdb_error_t confdb_key_create(confdb_handle_t handle, unsignedint parent_object_handle , void *key_name , void *value , int value_len ); DESCRIPTION
The confdb_key_create function adds a new key/value pair to the specified parent object. Parent objects may contain many keys and also sub- objects. The names of keys are not required to be unique: if you call confdb_key_create twice with the same parameters you will create two identical keys in the database. The parent object should already exist in the database, it can be OBJECT_PARENT_HANDLE (the top-level object) but this is not recommended. Unlike objects, keys do not have handles, so you can't go directly to a non-unique key without using the confdb_key_iter function. RETURN VALUE
This call returns the CONFDB_OK value if successful, otherwise an error is returned. ERRORS
The errors are undocumented. SEE ALSO
confdb_overview(8), confdb_initialize(3), confdb_finalize(3), confdb_dispatch(3), confdb_object_create(3), confdb_object_destroy(3), confdb_object_parent_get(3), confdb_key_create(3), confdb_key_delete(3), confdb_key_get(3), confdb_key_replace(3), confdb_object_find_start(3), confdb_object_find(3), confdb_object_iter_start(3), confdb_object_iter(3), confdb_key_iter_start(3), confdb_key_iter(3), corosync Man Page 2008-04-17 CONFDB_KEY_CREATE(3)
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