_delete example

return parent::_update($table, $values);
    }

    /** * Generates a platform-specific delete string from the supplied data */
    protected function _delete(string $table): string
    {
        $this->QBLimit = false;

        return parent::_delete($table);
    }

    /** * Generates a platform-specific truncate string from the supplied data * * If the database does not support the truncate() command, * then this method maps to 'DELETE FROM table' */
    protected function _truncate(string $table): string
    {
        return 'TRUNCATE ' . $table . ' RESTART IDENTITY';
    }

/** * Generates a platform-specific delete string from the supplied data */
    protected function _delete(string $table): string
    {
        if ($this->QBLimit) {
            $this->where('rownum <= ', $this->QBLimit, false);
            $this->QBLimit = false;
        }

        return parent::_delete($table);
    }

    /** * Generates a platform-specific update string from the supplied data */
    protected function _update(string $table, array $values): string
    {
        $valStr = [];

        foreach ($values as $key => $val) {
            $valStr[] = $key . ' = ' . $val;
        }

        if ($this->_readOnly === true) {
            throw new Zend_Db_Table_Row_Exception('This row has been marked read-only');
        }

        $where = $this->_getWhereQuery();

        /** * Execute pre-DELETE logic */
        $this->_delete();

        /** * Execute cascading deletes against dependent tables */
        $depTables = $this->_getTable()->getDependentTables();
        if (!empty($depTables)) {
            $pk = $this->_getPrimaryKey();
            foreach ($depTables as $tableClass) {
                $t = $this->_getTableFromString($tableClass);
                $t->_cascadeDelete($this->getTableClass(), $pk);
            }
        }

    /** * Compiles a delete string and runs "DELETE FROM table" * * @return bool|string TRUE on success, FALSE on failure, string on testMode */
    public function emptyTable()
    {
        $table = $this->QBFrom[0];

        $sql = $this->_delete($table);

        if ($this->testMode) {
            return $sql;
        }

        $this->resetWrite();

        return $this->db->query($sql, null, false);
    }

    /** * Compiles a truncate string and runs the query * If the database does not support the truncate() command * This function maps to "DELETE FROM table" * * @return bool|string TRUE on success, FALSE on failure, string on testMode */

if ($this->db->DBDebug) {
                throw new DatabaseException('Deletes are not allowed unless they contain a "where" or "like" clause.');
            }

            return false; // @codeCoverageIgnore         }

        if (! empty($limit)) {
            $this->QBLimit = $limit;
        }

        $sql = $this->_delete($table);

        if ($resetData) {
            $this->resetWrite();
        }

        return $this->testMode ? $sql : $this->db->query($sql, $this->binds, false);
    }

    /** * Compile the SELECT statement * * Generates a query string based on which functions were used. * * @param bool $selectOverride */