protected DataType readDataType(
CachedRow columnMetadataResultSet, Column column, Database database) throws SQLException {
if (database instanceof OracleDatabase) {
String dataType = columnMetadataResultSet.getString("DATA_TYPE");
dataType = dataType.replace("VARCHAR2", "VARCHAR");
dataType = dataType.replace("NVARCHAR2", "NVARCHAR");
DataType type = new DataType(dataType);
// type.setDataTypeId(dataType);
if (dataType.equalsIgnoreCase("NUMBER")) {
type.setColumnSize(columnMetadataResultSet.getInt("DATA_PRECISION"));
// if (type.getColumnSize() == null) {
// type.setColumnSize(38);
// }
type.setDecimalDigits(columnMetadataResultSet.getInt("DATA_SCALE"));
// if (type.getDecimalDigits() == null) {
// type.setDecimalDigits(0);
// }
// type.setRadix(10);
} else {
type.setColumnSize(columnMetadataResultSet.getInt("DATA_LENGTH"));
if (dataType.equalsIgnoreCase("NCLOB")
|| dataType.equalsIgnoreCase("BLOB")
|| dataType.equalsIgnoreCase("CLOB")) {
type.setColumnSize(null);
} else if (dataType.equalsIgnoreCase("NVARCHAR") || dataType.equalsIgnoreCase("NCHAR")) {
type.setColumnSize(columnMetadataResultSet.getInt("CHAR_LENGTH"));
type.setColumnSizeUnit(DataType.ColumnSizeUnit.CHAR);
} else {
String charUsed = columnMetadataResultSet.getString("CHAR_USED");
DataType.ColumnSizeUnit unit = null;
if ("C".equals(charUsed)) {
unit = DataType.ColumnSizeUnit.CHAR;
type.setColumnSize(columnMetadataResultSet.getInt("CHAR_LENGTH"));
}
type.setColumnSizeUnit(unit);
}
}
return type;
}
String columnTypeName = (String) columnMetadataResultSet.get("TYPE_NAME");
if (database instanceof FirebirdDatabase) {
if (columnTypeName.equals("BLOB SUB_TYPE 0")) {
columnTypeName = "BLOB";
}
if (columnTypeName.equals("BLOB SUB_TYPE 1")) {
columnTypeName = "CLOB";
}
}
if (database instanceof MySQLDatabase
&& (columnTypeName.equalsIgnoreCase("ENUM") || columnTypeName.equalsIgnoreCase("SET"))) {
try {
String boilerLength;
if (columnTypeName.equalsIgnoreCase("ENUM")) boilerLength = "7";
else // SET
boilerLength = "6";
List<String> enumValues =
ExecutorService.getInstance()
.getExecutor(database)
.queryForList(
new RawSqlStatement(
"SELECT DISTINCT SUBSTRING_INDEX(SUBSTRING_INDEX(SUBSTRING(COLUMN_TYPE, "
+ boilerLength
+ ", LENGTH(COLUMN_TYPE) - "
+ boilerLength
+ " - 1 ), \"','\", 1 + units.i + tens.i * 10) , \"','\", -1)\n"
+ "FROM INFORMATION_SCHEMA.COLUMNS\n"
+ "CROSS JOIN (SELECT 0 AS i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) units\n"
+ "CROSS JOIN (SELECT 0 AS i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) tens\n"
+ "WHERE TABLE_NAME = '"
+ column.getRelation().getName()
+ "' \n"
+ "AND COLUMN_NAME = '"
+ column.getName()
+ "'"),
String.class);
String enumClause = "";
for (String enumValue : enumValues) {
enumClause += "'" + enumValue + "', ";
}
enumClause = enumClause.replaceFirst(", $", "");
return new DataType(columnTypeName + "(" + enumClause + ")");
} catch (DatabaseException e) {
LogFactory.getLogger().warning("Error fetching enum values", e);
}
}
DataType.ColumnSizeUnit columnSizeUnit = DataType.ColumnSizeUnit.BYTE;
int dataType = columnMetadataResultSet.getInt("DATA_TYPE");
Integer columnSize = null;
Integer decimalDigits = null;
if (!database.dataTypeIsNotModifiable(
columnTypeName)) { // don't set size for types like int4, int8 etc
columnSize = columnMetadataResultSet.getInt("COLUMN_SIZE");
decimalDigits = columnMetadataResultSet.getInt("DECIMAL_DIGITS");
if (decimalDigits != null && decimalDigits.equals(0)) {
decimalDigits = null;
}
}
Integer radix = columnMetadataResultSet.getInt("NUM_PREC_RADIX");
Integer characterOctetLength = columnMetadataResultSet.getInt("CHAR_OCTET_LENGTH");
if (database instanceof DB2Database) {
String typeName = columnMetadataResultSet.getString("TYPE_NAME");
if (typeName.equalsIgnoreCase("DBCLOB")
|| typeName.equalsIgnoreCase("GRAPHIC")
|| typeName.equalsIgnoreCase("VARGRAPHIC")) {
if (columnSize != null) {
columnSize = columnSize / 2; // Stored as double length chars
}
}
}
DataType type = new DataType(columnTypeName);
type.setDataTypeId(dataType);
type.setColumnSize(columnSize);
type.setDecimalDigits(decimalDigits);
type.setRadix(radix);
type.setCharacterOctetLength(characterOctetLength);
type.setColumnSizeUnit(columnSizeUnit);
return type;
}
