getTypeInfo Method (SQLServerDatabaseMetaData)
Retrieves a description of all the standard SQL types that are supported by the current database.
public java.sql.ResultSet getTypeInfo()
Return Value
A SQLServerResultSet object.
Exceptions
Remarks
This getTypeInfo method is specified by the getTypeInfo method in the java.sql.DatabaseMetaData interface.
The result set returned by the getTypeInfo method will contain the following information:
Name | Type | Description |
---|---|---|
TYPE_NAME |
String |
The name of the data type. |
DATA_TYPE |
short |
The SQL data type from java.sql.Types. |
PRECISION |
int |
The total number of significant digits. |
LITERAL_PREFIX |
String |
The character or characters used before a constant. |
LITERAL_SUFFIX |
String |
The character or characters used to terminate a constant. |
CREATE_PARAMS |
String |
The description of the creation parameters for the data type. |
NULLABLE |
short |
Indicates if the column can contain a null value. It can be one of the following values: typeNoNulls (0) typeNullable (1) typeNullableUnknown (2) |
CASE_SENSITIVE |
boolean |
Indicates if the data type is case sensitive. "true" if the type is case sensitive; otherwise, "false". |
SEARCHABLE |
short |
Indicates if the column can be used in a SQL WHERE clause. It can be one of the following values: typePredNone (0) typePredChar (1) typePredBasic (2) typeSeachable (3) |
UNSIGNED_ATTRIBUTE |
boolean |
Indicates the sign of the data type. "true" if the type is unsigned; otherwise, "false". |
FIXED_PREC_SCALE |
boolean |
Indicates that the data type can be a money value. "true" if the data type is money type; otherwise, "false". |
AUTO_INCREMENT |
boolean |
Indicates that the data type can be automatically incremented. "true" if the type can be auto incremented; otherwise, "false". |
LOCAL_TYPE_NAME |
String |
The localized name of the data type. |
MINIMUM_SCALE |
short |
The maximum number of digits to the right of the decimal point. |
MAXIMUM_SCALE |
short |
The minimum number of digits to the right of the decimal point. |
SQL_DATA_TYPE |
int |
Not supported by the JDBC driver. |
SQL_DATETIME_SUB |
int |
Not supported by the JDBC driver. |
NUM_PREC_RADIX |
int |
The number of bits or digits for calculating the maximum number that a column can hold. |
INTERVAL_PRECISION |
smallint |
The value of interval leading precision. |
USERTYPE |
smallint |
The usertype value from the systypes table. For more information, see SQL Server Books Online. |
Note
For more information about the data returned by the getTypeInfo method, see "sp_datatype_info (Transact-SQL)" in SQL Server Books Online.
Example
The following example demonstrates how to use the getTypeInfo method to return information about the data types used in a SQL Server 2005 database.
public static void executeGetTypeInfo(Connection con) {
try {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getTypeInfo();
ResultSetMetaData rsmd = rs.getMetaData();
// Display the result set data.
int cols = rsmd.getColumnCount();
while(rs.next()) {
for (int i = 1; i <= cols; i++) {
System.out.println(rs.getString(i));
}
}
rs.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
See Also
Reference
SQLServerDatabaseMetaData Class
Concepts
SQLServerDatabaseMetaData Methods
SQLServerDatabaseMetaData Members