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Athena json query
Athena json query





athena json query

This command adds missing partitions to the metastore. In order to do that run query MSCK REPAIR table. To preview the data from this partitioned table, the partitions need to be loaded into metastore.After the table is created same table can be seen under Tables, next to the table name keyword "partitioned" will be mentioned.coln datatype) partitioned by ('partition col1',datatype) row format delimited fields terminated by ' ' lines terminated by '\n' location 's3://bucketname/foldername' create external table ( col1 datatype, col2 datatype. Here in location, specify s3 bucket path against which the query should run. In Athena query editor run query to create a table, below is an example for creating a partitioned table.Next a new table can be created under this database.In the settings option you can specify S3 bucket path for storing results of queries that will be run on Athena query editor.Make sure the under database-> the database created in step 3 is selected now.Under the Database -> default database is "default", you can select this database or create a database for your usage by running command "create database ".Under the Data Source-> default is "AWS DataCatalog", leave it as is.Login into AWS console-> go to services and select Athena.Here are few steps to help you query raw data on S3 using AWS Athena:







Athena json query