Reputation: 173
I need to convert MSSQL query to Oracle but end up with SQL command not properly ended
.
Here is MSSQL query
SELECT * FROM [dbo].[trade] AS [Extent1]
WHERE EXISTS (
SELECT 1 AS [C1] FROM
[dbo].[findetail] AS [Extent2]
INNER JOIN [dbo].[transact] AS [Extent3] ON [Extent2].[transact] = [Extent3].[transact]
WHERE [Extent1].[trade] = [Extent2].[trade]
AND 'ACCR' = [Extent3].[subledger]
AND [Extent3].[date] = '2016-03-18T00:00:00'
)
Converting it to Oracle SQL I end with this.
SELECT * FROM trade Extent1
WHERE EXISTS
(SELECT 1 C1 FROM findetail Extent2
JOIN transact Extent3
ON Extent2.transact=Extent3.transact
WHERE Extent1.trade=Extent2.trade
AND 'ACCR'=Extent3.subledger
AND Extent3.date='2016-03-18T00:00:00'
);
and receive error above.
Upvotes: 0
Views: 766
Reputation: 168671
DATE
is a reserved word so needs to the surrounded in double quotes and, I am assuming that it is of DATE
data type so you will probably need to convert the string:
SELECT *
FROM trade t
WHERE EXISTS (
SELECT 1
FROM findetail f
JOIN transact r
ON f.transact = r.transact
WHERE t.trade = f.trade
AND 'ACCR' = r.subledger
AND r."DATE" = TO_DATE( '2016-03-18T00:00:00', 'YYYY-MM-DD"T"HH24:MI:SS' )
);
If you just use the string in r."DATE" = '2016-03-18T00:00:00'
then Oracle will implicitly try to convert the string literal using the TO_DATE()
function with the NLS_DATE_FORMAT
session parameter as the format mask. If they match then it will work but this is a client variable so can be changed and then the query will break without the code having changed (and be a pain to debug). The simple answer is to ensure that you compare date value by either using TO_DATE()
and specifying the format mask (as per the query above) or to use an ANSI date literal DATE '2016-03-18'
(which is independent of the NLS settings).
Upvotes: 0
Reputation: 1271003
Date formats are different in Oracle. Perhaps something like this:
SELECT *
FROM trade Extent1
WHERE EXISTS (SELECT 1
FROM findetail Extent2 JOIN
transact Extent3
ON Extent2.transact = Extent3.transact
WHERE Extent1.trade = Extent2.trade AND
Extent3.subledger = 'ACCR' AND
Extent3."date" = DATE '2016-03-18'
);
Upvotes: 0