dbplus_rcreatedbplus_rcrtexact
(PHP 4 >= 4.0.7, PECL dbplus:0.9)
dbplus_rcrtexact — Creates an exact but empty copy of a relation including indices
说明
mixed dbplus_rcrtexact
( string $name
, resource $relation
[, bool $overwrite
] )
dbplus_rcrtexact() will create an exact but empty copy of the given relation under a new name .
参数
- name
-
- relation
-
The copied relation, opened by dbplus_open().
- overwrite
-
An existing relation by the same name will only be overwritten if this parameter is set to TRUE and no other process is currently using the relation.
返回值
Returns resource on success or DBPLUS_ERR_UNKNOWN on failure.
注释
Warning
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。
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