since I'm fairly new to the concept of generated columns, I have a question about their use. I understand that it is supposed to help speed up queries ...
since I'm fairly new to the concept of generated columns, I have a question about their use. I understand that it is supposed to help speed up queries ...
Snowflake does not document its Virtual Column capability that uses the AS clause. I am doing a migration and needing to filter out virtual columns pr ...
I'm trying to optimize the speed of this query: v.visit_date is of type DATETIME and t.t_date is a string of format '%Y-%m-%d'. Simply creating an ...
I want to make database calculate a column. For example: There is a column named 'price'. every time I insert a new value into the price, I want anoth ...
According the the documentation, MariaDB allows user defined functions to be used in generated column definitions https://mariadb.com/kb/en/generated- ...
I am trying to do a groupby virtual column in a Druid native query which looks like this... This gives out a single row with longsum of all row_cou ...
PostgreSQL 12 has a cool Generated Columns feature but I can't check whether column is virtual or not in Rails. For reference, MySQL Adapter in Rails ...
I have TableA that has hundreds of thousands of rows and is still increasing in size. With no partitions, the speed has decreased very noticeably. S ...
I have an Interface which's created with Oracle Forms. It has a base table block in which there's a field (namely col3"has the same name with the tabl ...
After googling for a while , I am posting this question here since I was not able to find such a problem posted anywhere. Our application has a table ...
I have a MySQL alter statement This is needed for adding employee_name_generator in a unique constraint. This works fine in MySQL 5.7 onwards. But ...
Is it possible to create a generated MySQL column that runs a condition on other columns? For example: column "a" - type boolean column "b" - type da ...
Let me explain . I have a json data set with values something like this: Now i want to create a Virtual column which only fetch value "FS-6097" fro ...
I have table TEST_ORD where i have column ORD_DAYID which is virtual column. I want to know from where and how the value in this coumn is populating. ...
I dont understand the below issue where i am trying to insert the query and getting error as Insert operation disallowed on virtual columns. I took a ...
This an attempt to the test the usage of the VIRTUAL column with a function to increment the value in a column. I am using a function which would ret ...
I am trying to create a table with a timestamp column and a virtual (calculated) column that holds a helper key for grouping the rows with timestamps ...
I have this trigger it calculates the changes in sales_detail.total_price and updates the sales_master.value. the thing is that the total_price co ...
In MySQL 5.7.11, adding a composite index where one of the columns is a virtual generated column results in the following error: Error Code: 3175. ...
I'm working with MySQL 5.7. I created a table with a virtual column (not stored) of type DATETIME with an index on it. While I was working on it, I no ...