DB2常见错误及解决办法

1、创建数据库的时候，报42704错误。如：

=>create database test
=>SQL0204N  "SYSTEM_1386_US" is an undefined name.  SQLSTATE=42704

=>create database test
=>SQL0204N  "SYSTEM_1386_US" is an undefined name.  SQLSTATE=42704

解决办法：

=>create database test using codeset gbk territory cn

=>create database test using codeset gbk territory cn

2、在连接数据的时候，报57017错误。如：

=>connect to test user test using test
=>SQL0332N  Character conversion from the source code page "1386" to the target code page "819" is not supported. SQLSTATE=57017

=>connect to test user test using test
=>SQL0332N  Character conversion from the source code page "1386" to the target code page "819" is not supported. SQLSTATE=57017

解决办法：

=>db2set db2codepage=1386

=>db2set db2codepage=1386

3、在对数据库进行操作的时候，报55039错误。如：

=>db2 drop table t_base_acc_manageacc
=>SQL0290N  Table space access is not allowed.  SQLSTATE=55039

=>db2 list tablespaces show detail
Tablespace ID                        = 2
Name                                 = USERSPACE1
Type                                 = System managed space
Contents                             = Any data
State                                = 0x0020
Detailed explanation:
   Backup pending

=>db2 drop table t_base_acc_manageacc
=>SQL0290N  Table space access is not allowed.  SQLSTATE=55039

=>db2 list tablespaces show detail
Tablespace ID                        = 2
Name                                 = USERSPACE1
Type                                 = System managed space
Contents                             = Any data
State                                = 0x0020
Detailed explanation:
   Backup pending 

原因：在归档的数据库做过load或者改了参数重新启动了db
解决办法：

备份数据库
=>db2 backup db

备份数据库
=>db2 backup db

4、在对数据库进行备份的时候，报57019错误。如：

=>db2 backup database dbname to /xx/xx compress
=>SQL1035N The database is currently in use. SQLSTATE=57019

=>db2 backup database dbname to /xx/xx compress
=>SQL1035N The database is currently in use. SQLSTATE=57019

解决办法：

=>db2stop force
=>db2start

=>db2stop force
=>db2start

5、在对创建表空间的时候，报54047错误。如：

=>create regular tablespace space1 pagesize 4 k managed by database using (device '/dev/dd' 25000000) prefetchsize automatic bufferpool bp1
=>SQL1139N The total size of the table space is too big.  SQLSTATE=54047

=>create regular tablespace space1 pagesize 4 k managed by database using (device '/dev/dd' 25000000) prefetchsize automatic bufferpool bp1
=>SQL1139N The total size of the table space is too big.  SQLSTATE=54047

解决办法：把表空间的大小改小点或者把regular（64G）换成large就ok了。


6、DB2备份失败，报内存不足，增大了dbheap也没有用。SQL2009C，没有足够的可用内存来运行此实用程序。
原因：DB2 UTIL_HEAP_SZ 未设置得足够高以用于备份实用程序。
解决办法：db2 update db cfg for dbname using UTIL_HEAP_SZ 具体的数字（db2备份使用的内存是UTIL_HEAP_SZ，请使用以上命令调整）。


7、用JDBC往表批量插入数据时。报23502错误。如：

Error for batch element #0: DB2 SQL error: SQLCODE: -407, SQLSTATE: 23502, SQLERRMC: TBSPACEID=2, TABLEID=15, COLNO=2

Error for batch element #0: DB2 SQL error: SQLCODE: -407, SQLSTATE: 23502, SQLERRMC: TBSPACEID=2, TABLEID=15, COLNO=2 

原因：往表中有非空约束的字段，插入空值。
解决办法：查看表定义，去掉非空约束，或加入非空值。


8、用JDBC往表批量插入数据时。报22001错误。如：

DB2 SQL Error: SQLCODE=-302, SQLSTATE=22001, SQLERRMC=null

DB2 SQL Error: SQLCODE=-302, SQLSTATE=22001, SQLERRMC=null

原因：表中某字段的长度不够，发生字符串截断。
解决办法：查看表定义，加大字段长度。


9、用JDBC往表批量插入数据时。报-4474错误。如：

非法转换：不能从“java.lang.String”转换到“byte[]” ERRORCODE=-4474, SQLSTATE=null

非法转换：不能从“java.lang.String”转换到“byte[]” ERRORCODE=-4474, SQLSTATE=null

原因：表中某字段定义为‘ID CHAR(16) FOR BIT DATA NOT NULL’（这个是使用MTK从MS SQL迁移到DB2时，uniqueidentifier转换成的）。
解决办法：重新创建表，把字段属性改为VARCHAR类型。

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