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dbplus_rcrtexact

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)

dbplus_rcrtexactCreates 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

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 。

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