# ij.protocol.protocolName property

The `ij.protocol.protocolName` property is similar to the `ij.protocol` property. The only difference is that it associates a name with the value, thus allowing you to define and use more than one protocol.

## Syntax

    ij.protocol.protocolName=protocolForEnvironment

## Example

    java -Dij.protocol.derby=jdbc:derby: \
    -Dij.protocol.emp=jdbc:derby: org.apache.derby.tools.ij
    ij version 10.17
    ij> Connect 'newDB' protocol derby as new;
    ij>

## See also

- ij.protocol property
- Protocol command
- Connect command

Parent topic: ij properties reference
Related reference
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ij.database property
ij.dataSource property
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