Creates an exact but empty copy of a relation including indices (4.1.0 - 4.2.3 only, PECL)
mixed dbplus_rcrtexact ( string name, resource relation [, bool overwrite] )


本函数是实验性的。本函数的行为,包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。

dbplus_rcrtexact() will create an exact but empty copy of the given relation under a new name. An existing relation by the same name will only be overwritten if overwrite is TRUE and no other process is currently using the relation.

Returns resource on success or DBPLUS_ERR_UNKNOWN on failure.