Menu
I'm about to migrate queries from Legacy to Standard in BQ.
In Legacy I used to have x/y returning null if y=0, however, I'm stuck in StandardSQL with the error:
Error: division by zero
I'd like to apply something like IFERROR(x/y,null)
Is it available in StandardSQL?
627
BigQuery hasn't documented it yet, but you can handle any type of exception in BigQuery by creating an exception handling clause, as described in the following example: BEGIN SELECT 1/0; EXCEPTION WHEN ERROR THEN SELECT @@error. message, @@error.
NOT EQUAL TO (!=) and EXISTS... EQUAL TO Giving Different Results.
To convert an ARRAY into a set of rows, also known as "flattening," use the UNNEST operator. UNNEST takes an ARRAY and returns a table with a single row for each element in the ARRAY . Because UNNEST destroys the order of the ARRAY elements, you may wish to restore order to the table.
Calling persistent user-defined functions (UDFs)After creating a persistent UDF, you can call it as you would any other function, prepended with the name of the dataset in which it is defined as a prefix. To call a UDF in a project other than the project that you are using to run the query, project_name is required.
In standard SQL you can use SAFE_DIVIDE(x, y)
It is an equivalent to the division operator (/). Returns NULL if an error occurs, such as division by zero.
190
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
