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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LEARN ABOUT SUSE
confdb_key_create
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)