framework/db/oci/QueryBuilder.php
public function executeResetSequence($table, $value = null)
    {
        $tableSchema = $this->db->getTableSchema($table);
        if ($tableSchema === null) {
            throw new InvalidArgumentException("Unknown table: $table");
        }
        if ($tableSchema->sequenceName === null) {
            throw new InvalidArgumentException("There is no sequence associated with table: $table");
        }

        if ($value !== null) {
            $value = (int) $value;
        } else {
            if (count($tableSchema->primaryKey)>1) {
                throw new InvalidArgumentException("Can't reset sequence for composite primary key in table: $table");
            }
            // use master connection to get the biggest PK value
            $value = $this->db->useMaster(function (Connection $db) use ($tableSchema) {
                return $db->createCommand(
                    'SELECT MAX("' . $tableSchema->primaryKey[0] . '") FROM "'. $tableSchema->name . '"'
                )->queryScalar();
            }) + 1;
        }

        //Oracle needs at least two queries to reset sequence (see adding transactions and/or use alter method to avoid grants' issue?)
        $this->db->createCommand('DROP SEQUENCE "' . $tableSchema->sequenceName . '"')->execute();
        $this->db->createCommand('CREATE SEQUENCE "' . $tableSchema->sequenceName . '" START WITH ' . $value
            . ' INCREMENT BY 1 NOMAXVALUE NOCACHE')->execute();
    }
public function executeResetSequence($table, $value = null)
    {
        $tableSchema = $this->db->getTableSchema($table);
        if ($tableSchema === null) {
            throw new InvalidArgumentException("Unknown table: $table");
        }
        if ($tableSchema->sequenceName === null) {
            throw new InvalidArgumentException("There is no sequence associated with table: $table");
        }

        if ($value !== null) {
            $value = (int) $value;
        } else {
            if (count($tableSchema->primaryKey)>1) {
                throw new InvalidArgumentException("Can't reset sequence for composite primary key in table: $table");
            }
            // use master connection to get the biggest PK value
            $value = $this->db->useMaster(function (Connection $db) use ($tableSchema) {
                return $db->createCommand(
                    'SELECT MAX("' . $tableSchema->primaryKey[0] . '") FROM "'. $tableSchema->name . '"'
                )->queryScalar();
            }) + 1;
        }

        //Oracle needs at least two queries to reset sequence (see adding transactions and/or use alter method to avoid grants' issue?)
        $this->db->createCommand('DROP SEQUENCE "' . $tableSchema->sequenceName . '"')->execute();
        $this->db->createCommand('CREATE SEQUENCE "' . $tableSchema->sequenceName . '" START WITH ' . $value
            . ' INCREMENT BY 1 NOMAXVALUE NOCACHE')->execute();
    }
{@inheritdoc}