first_name=S.first_name, T.last_name=S.last_nameWhenmatchedAndS.operation_name='DELETE'THENDELETE; I am expecting to see - Bellsat - as last name for employee id 1 in the employee_destination table after all rows get processed. Same way, I should not see emp id ...
At Capital One, Spark-based processes move data and metadata into our storage in the data lake. The data in the lake is in the Parquet file format and Iceberg table format, so the data is queryable from Snowflake. We use acatalog integrationfrom Snowflake to the Iceberg catalog system of...
FROM clause, and WHILE clause are similar toSQLand MDX. MDX Provides various ways with Which A cube can be queried it provides different functions with MDX we can even create, Modify and delete cubes of require
Transactional Data: Sales and product records that capture critical business transactions and operations. Third-Party Data: External data sources that your company does not collect directly but integrates to enhance insights or support decision-making. These data sources serve as the starting point for...
I will insert the new data and delete the updated data and reinsert it. The problem is that the source tables are not updated at the same time. What is the best way to keep this table up to date with the data from source tables. ...
HitBTC will often ask the selective-scam “winners” (those that succeed in making HitBTC believe that not returning that customer’s cryptocurrency will result in more financial loss to HitBTC than the level of assets initially stolen by HitBTC) that they refund to delete or edit their public ...
Select all records from the table with this ID Mask required fields Insert the data back to the table Run “optimize table … final” command to be sure old records are deleted from disk When a new hourly increment is coming we perform a join to the list of deleted IDs. This means if...
I am using below connection string to read the data from excel Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path of the file + ";Extended...
however, there are two big categories when it comes to design a diagram for reporting systems; Snowflake and Star Schema. Snowflake is when there are many relationships between tables, and when you have to pass through multiple relationships to get from one table to another. Here i...
I have a small lookup table and I want to filter a lager table by a few values UUID values in the lookup table. I’ve been struggling to not scan the entire larger table. So far I’ve only been able use a subset of partitions from the larger table if I hard...