java.sql.SQLWarning class

Derby can generate a warning in certain circumstances. A warning is generated if, for example, you try to connect to a database with the create attribute set to true if the database already exists.

Aggregates like SUM also raise a warning if NULL values are encountered during the evaluation.

All other informational messages are written to the Derby system's derby.log file.

Parent topic: JDBC reference

Related reference

java.sql.Driver interface

java.sql.DriverManager.getConnection method

java.sql.Connection interface

java.sql.DatabaseMetaData interface

java.sql.Statement interface

java.sql.CallableStatement interface

java.sql.PreparedStatement interface

java.sql.ResultSet interface

java.sql.ResultSetMetaData interface

java.sql.SQLException class

java.sql.SQLXML interface

java.sql.SQLType interface

java.sql.Savepoint interface

Mapping of java.sql.Types to SQL types

JDBC escape syntax