Standard SQL Data Types with Their Java Equivalents : Database Type vs Java Type « Database SQL JDBC « Java





Standard SQL Data Types with Their Java Equivalents

 

SQL type            Java Type                 Description

BINARY              byte[]                    Byte array. Used for binary large objects.

BIT                 boolean                   Boolean 0 / 1 value

CHAR                String                    Fixed-length character string. 

DATETIME            java.sql.Date             Date and Time as: yyyy-mm-dd hh:mm:ss

DECIMAL             java.math.BigDecimal      Arbitrary-precision signed decimal numbers. 

FLOAT               double                    Floating-point number, mapped to double

INTEGER             int                       32-bit integer values

LONGVARBINARY       byte[]                    Variable-length character string. 

LONGVARCHAR         String                    Variable-length character string. 

NCHAR               String                    National Character Unicode fixed-length character string

NUMERIC             java.math.BigDecimal      Arbitrary-precision signed decimal numbers. 

NTEXT               String                    Large string variables. 

NVARCHAR            String                    National Character Unicode variable-length character string

REAL                float                     Floating-point number, mapped to float

SMALLINT            short                     16-bit integer values

TIME                java.sql.Time             Thin wrapper around java.util.Date

TIMESTAMP           java.sql.Timestamp        Composite of a java.util.Date and a separate nanosecond value

VARBINARY           byte[]                    Byte array

VARCHAR             String                    Variable-length character string. 

 










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