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The table name, path, database info are stored in Hive metastore, the actual schema is stored in the "_delta_log" directory that should be in the root path location where you Delta table is stored.

Disable Delta format to read as Parquet you need to set to false the following Spark settings:>> SET spark.databricks.delta.formatCheck.enabled=false OR>> spark.conf.set("spark.databricks.delta.formatCheck.enabled", "false")its not recommended to re...

You can run  ANALYZE TABLE  on Delta tables only on Databricks Runtime 8.3 and above. For more details please refer to the docs: https://docs.databricks.com/spark/latest/spark-sql/language-manual/sql-ref-syntax-aux-analyze-table.html

We can use below API to create a token and use the username and passwordcurl -X POST -u "admin_email":"xxxx" https://host/api/2.0/token/create -d' { "lifetime_seconds": 100, "comment": "this is an example token" }'

Yes, the .ipynb format is a supported file type which can be imported to a Databricks workspace. Note that some special configurations may need to be adjusted to work in the Databricks environment. Additional accepted file formats which can be import...

Few things on top of my mind.1) Check Spark UI and check which stage is taking more time.2) Check for data skewing3) Data skew can severely downgrade performance of queries, Spark SQL accepts skew hints in queries, also make sure to use proper join h...