dbplus_rcrtexact
(4.1.0 - 4.2.3 only, PECL)
dbplus_rcrtexact -- Creates an exact but empty copy of a relation including indicesDescription
mixed dbplus_rcrtexact ( string name, resource relation [, bool overwrite] )| 警示 |
本函數是實驗性的。本函數的行為，內含函數名稱以及其它任何關於本函數的文件可能會在沒有知會的情況下隨 PHP 以後的發佈而改變。使用本函數風險自擔。 |
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.