Listing Available SQL Types Used by a Database
This example retrieves the SQL data types supported by a database and
driver.
Here's an example of output for the MySQL database:
try {
// Get database meta data
DatabaseMetaData dbmd = connection.getMetaData();
// Get type info
ResultSet resultSet = dbmd.getTypeInfo();
// Retrieve type info from the result set
while (resultSet.next()) {
// Get the database-specific type name
String typeName = resultSet.getString("TYPE_NAME");
// Get the java.sql.Types type to which this database-specific type is mapped
short dataType = resultSet.getShort("DATA_TYPE");
// Get the name of the java.sql.Types value.
// This method is implemented in Getting the Name of a JDBC Type
String jdbcTypeName = getJdbcTypeName(dataType);
}
} catch (SQLException e) {
}
MySQL Type Name, JDBC Type Name
TINYINT, TINYINT
BIGINT, BIGINT
MEDIUMBLOB, LONGVARBINARY
MEDIUMTEXT, LONGVARBINARY
LONGBLOB, LONGVARBINARY
LONGTEXT, LONGVARBINARY
BLOB, LONGVARBINARY
TEXT, LONGVARBINARY
TINYBLOB, VARBINARY
TINYTEXT, VARBINARY
CHAR, CHAR
NUMERIC, NUMERIC
DECIMAL, DECIMAL
INT, INTEGER
MEDIUMINT, INTEGER
SMALLINT, SMALLINT
FLOAT, FLOAT
DOUBLE, DOUBLE
DOUBLE PRECISION, DOUBLE
REAL, DOUBLE
VARCHAR, VARCHAR
ENUM, VARCHAR
SET, VARCHAR
DATE, DATE
TIME, TIME
DATETIME, TIMESTAMP
TIMESTAMP, TIMESTAMP
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