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- DB++
- DB++ 函数
dbplus_rcrtexact
(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)
dbplus_rcrtexact — Creates an exact but empty copy of a relation including indices
说明
dbplus_rcrtexact ( string$name
, resource $relation
[, bool $overwrite
] ) : mixed
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
namewill only be overwritten if this parameter is set toTRUEand no other process is currently using the relation.
返回值
Returns resource on success or DBPLUS_ERR_UNKNOWN on
failure.
注释
Warning此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/function.dbplus-rcrtexact.php