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Suresh Thalamati commented on SPARK-10664: ------------------------------------------ Table exists case should be fixed as part of SPARK-9078 fix. This one is fix is recently in the latest code line. > JDBC DataFrameWriter does not save data to Oracle 11 Database > ------------------------------------------------------------- > > Key: SPARK-10664 > URL: https://issues.apache.org/jira/browse/SPARK-10664 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 1.5.0 > Reporter: Dmitriy Atorin > Priority: Critical > > The issue is that Oracle 11 and less does not support LIMIT function. > The issue is here: > 1 . Go in org.apache.spark.sql.execution.datasources.jdbc > 2. object JdbcUtils > 3. > def tableExists(conn: Connection, table: String): Boolean = { > // Somewhat hacky, but there isn't a good way to identify whether a table > exists for all > // SQL database systems, considering "table" could also include the > database name. > Try(conn.prepareStatement(s"SELECT 1 FROM $table LIMIT > 1").executeQuery().next()).isSuccess > } > I think it is better to write in this way > s"SELECT count(*) FROM $table WHERE 1=0" -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org