SAP Hana Vora : Unable to query vora tables

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I am trying to query the vora table select * from table_name but geting below error...i am using SAP Hana Vora 1.2...

Caused by:

sap.hanavora.jdbc.VoraException: HL(9): Runtime error. (schema error: schema "spark_velocity" does not exist (c++ exception)) at 
sap.hanavora.jdbc.driver.HLMessage.buildException(HLMessage.java:88) at 
sap.hanavora.jdbc.driver.tcp.TcpDriver.checkErrorsV2(TcpDriver.java:488) at 
sap.hanavora.jdbc.driver.tcp.TcpDriver.sendMessageCheckAndReciveRespone(TcpDriver.java:520) at 
sap.hanavora.jdbc.driver.tcp.TcpDriver.execute(TcpDriver.java:178) at 
sap.hanavora.jdbc.HLStatement.executeHelper(HLStatement.java:37) at 
sap.hanavora.jdbc.HLStatement.executeQuery(HLStatement.java:22) at 
sap.hanavora.jdbc.AbstractHLStatement.execute(AbstractHLStatement.java:55) at 
com.sap.spark.vora.client.jdbc.VoraJdbcClient.execute(VoraJdbcClient.scala:559) at 
com.sap.spark.vora.client.jdbc.VoraJdbcClient.executeSetSchema(VoraJdbcClient.scala:537) at 
com.sap.spark.vora.client.jdbc.VoraJdbcClient.liftedTree1$1(VoraJdbcClient.scala:143)

Could you please help me in clearing the vora catalogs.

Is there any way to clear vora catalog on SAP Hana Vora 1.2 ???? or to restart vora catalog on SAP Hana Vora 1.2???

Thanks, Akash

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