This article will show you the relationship between database data type (ex PostgreSQL) and java data types
Example
| Data type on the server | Java data type | Data types prescribed by java.sql.Types |
|---|---|---|
| character | String | java.sql.Types.CHAR |
| national character | String | java.sql.Types.NCHAR |
| character varying | String | java.sql.Types.VARCHAR |
| national character varying | String | java.sql.Types.NVARCHAR |
| text | String | java.sql.Types.VARCHAR |
| bytea | byte[] | java.sql.Types.BINARY |
| smallint | short | java.sql.Types.SMALLINT |
| integer | int | java.sql.Types.INTEGER |
| bigint | long | java.sql.Types.BIGINT |
| smallserial | short | java.sql.Types.SMALLINT |
| serial | int | java.sql.Types.INTEGER |
| bigserial | long | java.sql.Types.BIGINT |
| real | float | java.sql.Types.REAL |
| double precision | double | java.sql.Types.DOUBLE |
| numeric | java.math.BigDecimal | java.sql.Types.NUMERIC |
| decimal | java.math.BigDecimal | java.sql.Types.DECIMAL |
| money | String | java.sql.Types.OTHER |
| date | java.sql.Date | java.sql.Types.DATE |
| time with time zone | java.sql.Time | java.sql.Types.TIME |
| time without time zone | java.sql.Time | java.sql.Types.TIME |
| timestamp without time zone | java.sql.Timestamp | java.sql.Types.TIMESTAMP |
| timestamp with time zone | java.sql.Timestamp | java.sql.Types.TIMESTAMP |
| interval | org.postgresql.util.PGInterval | java.sql.Types.OTHER |
| boolean | boolean | java.sql.Types.BIT |
| bit | boolean | java.sql.Types.BIT |
| bit varying | org.postgresql.util.Pgobject | java.sql.Types.OTHER |
| oid | long | java.sql.Types.BIGINT |
| xml | java.sql.SQLXML | java.sql.Types.SQLXML |
| array | java.sql.Array | java.sql.Types.ARRAY |
| uuid | java.util.UUID | java.sql.Types.OTHER |
| point | org.postgresql.geometric.Pgpoint | java.sql.Types.OTHER |
| box | org.postgresql.geometric.Pgbox | java.sql.Types.OTHER |
| lseg | org.postgresql.geometric.Pglseg | java.sql.Types.OTHER |
| path | org.postgresql.geometric.Pgpath | java.sql.Types.OTHER |
| polygon | org.postgresql.geometric.PGpolygon | java.sql.Types.OTHER |
| circle | org.postgresql.geometric.PGcircle | java.sql.Types.OTHER |
| json | org.postgresql.util.PGobject | java.sql.Types.OTHER |
| Network address type (inet,cidr,macaddr) | org.postgresql.util.PGobject | java.sql.Types.OTHER |
| Types related to text searches (svector, tsquery) | org.postgresql.util.PGobject | java.sql.Types.OTHER |
| Enumerated type | org.postgresql.util.PGobject | java.sql.Types.OTHER |
| Composite type | org.postgresql.util.PGobject | java.sql.Types.OTHER |
| Range type | org.postgresql.util.PGobject | java.sql.Types.OTHER |

