Description: Query data in HBase database and return a single row. Syntax: hbase_get(client,tableName,rowName,family:colquery,hbase database,external library function,table sequence
Description: Query a HBase database and return result as a cursor or a table sequence. Syntax: hbase_scan(client,tableNaquery,hbase database,cursor,table sequence
Description: Query a Hive database and return the result as a cursor. Syntax: hive_cursor(con,sql) Note: This external lquery,hive database,cursor
Description: Query a Hive database and return the result as a sequence. Syntax: hive_query(con,sql) Note: This external query,hive database
Description: Query the databsase and return the query result. Syntax: mongo_shell(fd,s) Note: The function executesquery,mongodb database,result
Description: Query data in a multidimensional database and return the result. Syntax: olap_query(conn,mdx) Note: This exquery,multidimensional database
Here’s how to use query() function.query
Description: Query a Spark database, and return the result as a cursor. Syntax: spark_cursor(con,sql) Note: This exterquery,spark database,cursor
Description: Query a Spark database, and return the result as a sequence. Syntax: spark_query(con,sql) Note: This externquery,spark database,query
Description: Query a Spark database, and return the result as a sequence. Syntax: spark_query(con,sql) Note: This externquery,spark database,query