Java Clob列到varchar2
Im使用的是oracle 11g r2。当我运行以下查询时:Java Clob列到varchar2,java,sql,oracle,Java,Sql,Oracle,Im使用的是oracle 11g r2。当我运行以下查询时: select u.object_name, u.object_type, t.owner, DBMS_METADATA.GET_DDL(u.object_type, u.object_name) "DLL_INFORMATION" from user_objects u inner join all_tables t on u.object_name = t.table_name ddl信息列的结果是: oracl
select
u.object_name,
u.object_type,
t.owner,
DBMS_METADATA.GET_DDL(u.object_type, u.object_name) "DLL_INFORMATION"
from user_objects u
inner join all_tables t
on u.object_name = t.table_name
ddl信息列的结果是:
oracle.sql.CLOB@60802850
当我需要看这些的时候
CREATE TABLE "SYS"."ICOL$"
(
"OBJ#" NUMBER NOT NULL ENABLE,
"BO#" NUMBER NOT NULL ENABLE,
"COL#" NUMBER NOT NULL ENABLE,
"POS#" NUMBER NOT NULL ENABLE,
"SEGCOL#" NUMBER NOT NULL ENABLE,
"SEGCOLLENGTH" NUMBER NOT NULL ENABLE,
"OFFSET" NUMBER NOT NULL ENABLE,
"INTCOL#" NUMBER NOT NULL ENABLE,
"SPARE1" NUMBER,
"SPARE2" NUMBER,
"SPARE3" NUMBER,
"SPARE4" VARCHAR2(1000),
"SPARE5" VARCHAR2(1000),
"SPARE6" DATE
) CLUSTER "SYS"."C_OBJ#" ("BO#")
如何设置列的缓冲区或对列进行强制转换?我找到了答案:DBMS\u LOB.SUBSTR(DBMS\u METADATA.GET\u DDL(u.object\u type,u.object\u name),2000,1)作为“DLL\u信息”。谢谢,顺便问一下,你用什么客户端来执行查询?我用java来显示结果。我找到了答案:DBMS\u LOB.SUBSTR(DBMS\u METADATA.GET\u DDL(u.object\u type,u.object\u name),2000,1)作为“DLL\u信息”。谢谢,B你可以把这个标记为你知道的答案,即使它是你自己的(:-)。