Ways of concatenating string in a prepared statement [duplicate]

Answer 1

You can use below query

SELECT T1.COLUMN_NAME || T2.COLUMN_NAME || T3.COLUMN_NAME
FROM
TABLE_1 T1, TABLE_2 T2, TABLE_3 T3
WHERE T1.PRIMARY_KEY_COLUMN = T2.PRIMARY_KEY_COLUMN
AND
T1.PRIMARY_KEY_COLUMN = T3.PRIMARY_KEY_COLUMN

Just tell me you need it as sql query or java