Split Delimited String into multiple Columns in SQL Server - sql-server

Question

I want to split a string in a column that is separated by space into multiple column is SQL.
I used the query below, but I get NULL values
select
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 1) AS Country_Code,
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 2) AS iso_Code,
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 3) AS status,
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 5) AS date,
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 6) AS rate,
PARSENAME(REPLACE(FX_RAW_DATA, ' ', '.'), 7) AS fx
FROM process.FX_RAW_DATA_OUT;
GO

Answer 1

You don't state what version of SQL Server you are running. If STRING_SPLIT is not available on your version, you can do as follows (I think you are trying to split column FX_RAW_DATA on table process). Basically, you apply the calculation of each space one after the other, then substring each:
SELECT
Country_Code = SUBSTRING(p.FX_RAW_DATA, 1, v1.chr - 1),
iso_Code = SUBSTRING(p.FX_RAW_DATA, v1.chr + 1, v2.chr - v1.chr - 1),
status = SUBSTRING(p.FX_RAW_DATA, v2.chr + 1, v3.chr - v2.chr - 1),
date = SUBSTRING(p.FX_RAW_DATA, v3.chr + 1, v4.chr - v3.chr - 1),
rate = SUBSTRING(p.FX_RAW_DATA, v4.chr + 1, v5.chr - v4.chr - 1),
fx = SUBSTRING(p.FX_RAW_DATA, v5.chr + 1, LEN(p.FX_RAW_DATA))
FROM process p
CROSS APPLY (VALUES(CHARINDEX(' ', p.FX_RAW_DATA)) v1(chr)
CROSS APPLY (VALUES(CHARINDEX(' ', p.FX_RAW_DATA, v1.chr + 1)) v2(chr)
CROSS APPLY (VALUES(CHARINDEX(' ', p.FX_RAW_DATA, v2.chr + 1)) v3(chr)
CROSS APPLY (VALUES(CHARINDEX(' ', p.FX_RAW_DATA, v3.chr + 1)) v4(chr)
CROSS APPLY (VALUES(CHARINDEX(' ', p.FX_RAW_DATA, v4.chr + 1)) v5(chr);
The first substring always starts at 1 and ends at the first break, the last substring you can just pass the full length to get the remainder of the string.

Answer 2

It's not very clear from your example sample data and expected results what your data looks like. I have made some assumptions and example below should be easy to change to match your data as required.
DECLARE #stringarray varchar(max), --String holding your data
#Splitcharc char(1), --split character, space in your example
#X xml
set #stringarray = '01AED AUD M 30122020 .3541000 11' --example data line
set #Splitcharc = '' -- this can be changed if needed
-- We start off by formatting your string into an XML format
set #X = CONVERT(xml,' <Table> <Row> <col>' +
REPLACE(#stringarray,#Splitcharc,'</col> <col>') + '</col></Row> </Table> ')
-- The below show how you "query" each of the "columns" returned
SELECT
Tbl.cl.value('col[1]','VARCHAR(20)') country_code,
Tbl.cl.value('col[2]','VARCHAR(20)') ISO_code,
Tbl.cl.value('col[3]','VARCHAR(20)') [status],
Tbl.cl.value('col[4]','VARCHAR(20)') [date],
Tbl.cl.value('col[5]','VARCHAR(20)') rate,
Tbl.cl.value('col[6]','VARCHAR(20)') fx
FROM #X.nodes('/Table/Row') as Tbl(cl)