I am trying to delete all rows in a simple table that have a duplicate value except for the duplicate with the highest id.
Table:
CREATE TABLE IF NOT EXISTS [Expression] (
[ID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
[Value] VARCHAR(2048) NOT NULL
)
Attempted Queries:
DELETE Expression
WHERE EXISTS (
SELECT 1
FROM Expression Exp2
WHERE Expression.Value=Exp2.Value
AND Expression.Id < Exp2.Id)
fails with "SQL logic error or missing database near "Expression":syntax error"
DELETE Exp1
FROM Expression Exp1
INNER JOIN Expression Exp2
ON Exp1.Value=Exp2.Value AND Exp1.Id < Exp2.Id
fails with "SQL logic error or missing database near "Exp1":syntax error"
What syntax do I need to use?
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