BigQuery - Delete based on values from another table - sql

Question

I'm trying to delete rows from one table, based on the second table using INNER JOIN on BigQuery, but it keeps giving error.
The context is simple, I have an input table that I'm fetching the dates contained there, and on the historic table, I want to delete those dates in order to put them after the delete.
The code that I have now is the following, however it's returning the error
Syntax error: Expected end of input but got keyword INNER at [3:1]
DELETE
FROM `datapool-prt-supplychain-wrk.TRANSPORTS_DATA.tbl_historico_tb_rota` AS a
INNER JOIN
(SELECT DISTINCT
CAST(
CONCAT(RIGHT(data,4),'-',
CASE
WHEN LENGTH(data) = 8 THEN
CONCAT('0',SUBSTR(data ,3,1),'-0',LEFT(data ,1))
WHEN LENGTH(data) = 9 AND SUBSTR(data,3,1) = "-" THEN
CONCAT('0',SUBSTR(data ,4,1),"-",LEFT(data ,2))
WHEN LENGTH(data) = 9 THEN
CONCAT(SUBSTR(data ,3,2),'-0',LEFT(data ,1))
WHEN LENGTH(data) = 10 THEN
CONCAT(SUBSTR(data,4,2),'-',LEFT(data,2))
ELSE '1900-01-01'
END
)
AS DATE ) AS data
FROM `datapool-prt-supplychain-wrk.TRANSPORTS_DATA.tbl_input_tb_rota`) AS b ON b.data = a.data
WHERE b.data IS NOT NULL

Answer 1

Try to move your join logic to an exists clause
delete from `datapool-prt-supplychain-wrk.TRANSPORTS_DATA.tbl_historico_tb_rota` AS a
where exists (
select 1
from `datapool-prt-supplychain-wrk.TRANSPORTS_DATA.tbl_input_tb_rota` b
where
CAST(
CONCAT(
RIGHT(b.data,4),'-',
CASE
WHEN LENGTH(b.data) = 8 THEN
CONCAT('0',SUBSTR(b.data ,3,1),'-0',LEFT(b.data ,1))
WHEN LENGTH(b.data) = 9 AND SUBSTR(b.data,3,1) = "-" THEN
CONCAT('0',SUBSTR(b.data ,4,1),"-",LEFT(b.data ,2))
WHEN LENGTH(b.data) = 9 THEN
CONCAT(SUBSTR(b.data ,3,2),'-0',LEFT(b.data ,1))
WHEN LENGTH(b.data) = 10 THEN
CONCAT(SUBSTR(b.data,4,2),'-',LEFT(b.data,2))
ELSE '1900-01-01'
END
)
AS DATE ) = a.data
)