----原作者太多了，反正不是我写的

1、导出用户必须有SYSADM或DBADM授权，或者在表格上拥有CONTROL或SELECT权限；2、不支持带结构列的表格数据导出；3、可以导出带identity列的表格为ixf格式，导入时用REPLACE_CREATE、CREATE重建identity列，如果该列定义是GENERATED ALWAYS,导入时则必须指定identityignore选项。4、指定导出格式为ixf，ixf文件中含有表格和索引定义，用import可以重建表格和索引，但是下面情况ixf文件会丢失相关信息：* index column names contain hexadecimal values of 0×2B or 0×2D* table contains XML columns* table contains LOB(超过1G的定义) columns* table is multidimensional clustered* table contains a table partitioning key* index name that is longer than 128 bytes due to codepage conversion* table is a protected table* contains action strings other than SELECT * FROM * method N is specified5、如果导出文件太大，可以使用where条件限制导出的数据量，分批导出；6、导出文件格式：* DEL (delimited ASCII format)* WSF (work sheet format)* IXF (integrated exchange format, PC version)7、执行导出命令前，确认完成了commit或rollback；8、导出格式为DEL时，如果字符列长度超过254时会有警告提示；9、导出包是与DATETIME ISO格式绑定的，所以在sql语句中需要使用iso格式：查询数据库（返回3行数据）db2 select col2 from tab1 where char(col2)=’05/10/2005’;3 record(s) selected.导出时使用locale格式不能选择到记录db2 export to test.del of del select col2 from test where char(col2)=’05/10/2005’;Number of rows exported: 0由locale格式改为iso格式db2 export to test.del of del select col2 from test where char(col2)=’2005-05-10’;Number of rows exported: 310、导出执行的三种方式* CLP命令：export* ADMIN_CMD存储过程的export过程* db2export的API接口，使用c语言实现11、del文件格式指定参数举例：db2 “export to myfile.del of del modified by chardel’’ coldel; decpt, select * from staff”chardelx: 指定字符串的分隔符，缺省是双引号，可以指定为单引号modified by chardel'’coldelx：指定列分隔符，缺省是逗号，可以改为分号modified by coldel;decplusblank：指定对正数是否用+符号，缺省带+,可以指定不加正数符号striplzeros：指定移走数据前导的0，如：+00001.8–>+1.8测试如下db2 “export to tb1-1.del of del select * from tb1″+00000002.10,”abc”db2 “export to tb1-2.del of del modified by chardel'’ coldel; decplusblank striplzeros select * from tb1″2.10;’abc’timestampformat=″x″时间戳格式设置，如：”YYYY/MM/DD HH:MM:SS.UUUUUU”、”yyyy.mm.dd hh:mm tt”YYYY - Year (four digits ranging from 0000 - 9999)M - Month (one or two digits ranging from 1 - 12)MM - Month (two digits ranging from 01 - 12)D - Day (one or two digits ranging from 1 - 31)DD - Day (two digits ranging from 1 - 31)H - Hour (one or two digits ranging from 0 - 12 for a 12 hour system, and 0 - 24 for a 24 hour system)HH - Hour (two digits ranging from 0 - 12 for a 12 hour system, and 0 - 24 for a 24 hour system)M - Minute (one or two digits ranging from 0 - 59)MM - Minute (two digits ranging from 0 - 59)S - Second (one or two digits ranging from 0 - 59)SS - Second (two digits ranging from 0 - 59)UUUUUU - Microsecond (6 digits ranging from 000000 - 999999)UUUUU - Microsecond (5 digits ranging from 00000 - 99999)UUUU - Microsecond (4 digits ranging from 0000 - 9999)UUU - Microsecond (3 digits ranging from 000 - 999)UU - Microsecond (2 digits ranging from 00 - 99)U - Microsecond (1 digit ranging from 0 - 9)TT - Meridian indicator (AM or PM)如果指定了TT，HH就会在0－12之间显示