Funções para OCI8
PHP Manual

OCI-Lob->erase

(No version information available, might be only in CVS)

OCI-Lob->eraseErases a specified portion of the internal LOB data

Descrição

OCI-Lob
int erase ([ int $offset [, int $length ]] )

Erases a specified portion of the internal LOB data starting at a specified offset . If called without parameters, it erases all LOB data.

For BLOBs, erasing means that the existing LOB value is overwritten with zero-bytes. For CLOBs, the existing LOB value is overwritten with spaces.

Parâmetros

offset

length

Valor Retornado

Returns the actual number of characters/bytes erased or FALSE in case of error.

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Funções para OCI8
PHP Manual