//hi all. my problem is that i cannot write big date in clob field. curentli i can write string not greater than 4000 length. can you explain me please why i cannot write clob to clob field. im using:
- Oracle Database 11g Enterprise Edition Release 11.2.0.1.0
- List item hibernate 4.2.6.Final
- List item ojdbc 11.1.0.7.0
My entety is:
@Entity
@Table(....)
public class UiViewSettings implements java.io.Serializable {
private Integer id;
private String viewName;
private String userName;
private Clob data;
....
@Column(name = "VIEW_DATA", nullable = false)
public Clob getData() {
return this.data;
}
....
}
my code of updating entety :
UiViewSettings viewSettings = new UiViewSettings();
Clob createClob;
//creatind clob
viewSettings.setData(createClob);
session.update(viewSettings);
i tried create Clob several ways:
createClob = new SerialClob(xml.toCharArray());
and
connection = DriverManager.getConnection(...);
createClob = ((OracleConnection)connection).createClob();
createClob.setString(1, xml);
both ways throws exception :
Caused by: org.hibernate.exception.GenericJDBCException: could not execute statement
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3067)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3509)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:369)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:286)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:339)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1234)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
Caused by: java.sql.SQLException: ORA-01461: can bind a LONG value only for insert into a LONG column
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:206)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:413)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:1034)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:194)
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:953)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1222)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3387)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3468)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:147)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
EDIT
table is
CREATE TABLE "AQUARIUS"."UI_VIEW_SETTINGS_LT"
( "VIEW_ID" NUMBER NOT NULL ENABLE,
"VIEW_NAME" VARCHAR2(50 BYTE) NOT NULL ENABLE,
"USER_NAME" VARCHAR2(20 BYTE) NOT NULL ENABLE,
"VIEW_DATA" CLOB NOT NULL ENABLE,
"VERSION" NUMBER(*,0),
"CREATETIME" TIMESTAMP (6) WITH TIME ZONE,
"RETIRETIME" TIMESTAMP (6) WITH TIME ZONE,
"NEXTVER" VARCHAR2(500 BYTE),
"DELSTATUS" NUMBER(*,0),
"LTLOCK" VARCHAR2(100 BYTE),
CONSTRAINT "UI_VIEW_SETTINGS_PK" PRIMARY KEY ("VERSION", "VIEW_ID", "DELSTATUS")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS" ENABLE NOVALIDATE
) SEGMENT CREATION IMMEDIATE
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "USERS"
LOB ("VIEW_DATA") STORE AS BASICFILE (
TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION
NOCACHE LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) ;
this code executes fine in SQL Developer
DECLARE
REALLYBIGTEXTSTRING CLOB := '123';
i int;
BEGIN
WHILE LENGTH(REALLYBIGTEXTSTRING) <= 90000 LOOP
REALLYBIGTEXTSTRING := REALLYBIGTEXTSTRING || '000000000000000000000000000000000';
END LOOP;
DBms_output.put_line('I have started inputting your clob: '|| length(REALLYBIGTEXTSTRING));
INSERT INTO UI_VIEW_SETTINGS(view_id , view_name ,user_name, view_data) VALUES(0, 'test', 'test', REALLYBIGTEXTSTRING);
DBms_output.put_line('I have finished inputting your clob: '|| length(REALLYBIGTEXTSTRING));
end ;
Try to add the @LOB(type = LobType.CLOB)
annotation on top of your data
accessor method:
@Column(name = "VIEW_DATA", nullable = false)
@LOB(type = LobType.CLOB)
public Clob getData() {
return this.data;
}
This is limitation in oracle driver. The max length is defined as 4000 in the driver code. I've tried many possible ways but in vein. Surprisingly ,this works with ojbc6 driver.
来源:https://stackoverflow.com/questions/22321663/oracle-hibernate-ora-01461-clob