WebNov 8, 2024 · Let us start with the definitions of Count, Distinct and Null. COUNT: Returns either the number of non-NULL records for the specified columns, or the total number of … WebFeb 14, 2024 · In summary, Spark SQL function collect_list () and collect_set () aggregates the data into a list and returns an ArrayType. collect_set () de-dupes the data and return unique values whereas collect_list () return the values as is without eliminating the duplicates. Tags: collect_set () Naveen (NNK)
Using Variable to make Dynamic Column Aliases in …
WebBelow are 6 different use cases for aliases. 1. Filter-based aliases to limit access to data One use case is making a filter -based alias, which is quite useful when you need to limit … WebMay 10, 2024 · Write resolution instructions: Use bullets, numbers and additional headings Add Screenshots to explain the resolution Add diagrams to explain complicated technical details, keep the diagrams in lucidchart or in google slide (keep it shared with entire Snowflake), and add the link of the source material in the Internal comment section Go … daily temperature log 2022
Identify and Remove Duplicate Records from …
WebMar 16, 2024 · However, often the sources can generate duplicate log records and downstream deduplication steps are needed to take care of them. With merge, you can avoid inserting the duplicate records. SQL SQL MERGE INTO logs USING newDedupedLogs ON logs.uniqueId = newDedupedLogs.uniqueId WHEN NOT … WebJan 28, 2024 · In this post I’ll talk about how you can easily re-use aliased expressions in Snowflake. For example, you can do something like this (using the StackOverflow sample database): That’s right. I defined an … WebHow to Duplicate a Table in Snowflake Sometimes you need to duplicate a table. There are various methods, depending on your intent. Copy both the entire table structure and all the data inside: --method 1 create table sessions_copy clone sessions; --method 2 create table sessions_copy as select * from sessions; daily temperature log sheet template