How to write a SQL script to read contents of a file - sql

Question

I have a SQL script and a ".csv" file. I want the SQL script to read the data from the ".csv" file instead of manually entering the data in the script. Is it possible?
....
.....
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and SP_F.trade_id = SP_R.trade_id
and SP_R.iSINCode IN (here is where I can manually enter the data)
ps: I am new to SQL and I am still learning.

Answer 1

Here is good solution.
BULK INSERT CSVTest
FROM 'c:\csvtest.csv'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = '\n'
)
More explained:
1) We have csv file named test.csv with such content:
'JE000DT', 'BE000DT2J', 'DE000DT2'
1, 2, 3
2, 3, 4
4, 5, 6
2) We need to create table for this file in DB:
CREATE TABLE CSVTest ([columnOne] int, [columnTwo] int, [columnThree] int)
3) Insert your data with BULK INSERT. The columns count and type must match your csv.
BULK INSERT CSVTest
FROM 'C:\test.csv'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = '\n',
FIRSTROW = 2
)
4) Use your this table in yours subquery:
Select
SP_F.trade_id, -- as 'Trade ID',
SP_F.issuer_id, --as 'Issuer ID',
SP_R.iSINCode --as 'ISIN'
from t_SP_Fundamentals SP_F
JOIN t_SP_References SP_R ON SP_F.trade_id = SP_R.trade_id
where
(SP_F.issuer_id = 3608 or SP_F.issuer_id = 3607)
and SP_R.iSINCode IN (SELECT [columnOne] FROM CSVTest)
There is another solution with OPENROWSET statement, that allows direct reading from the file. But I strongly recommend you to use the solution above. Reading direct from the file in QUERY is not very great choose.