怎么在ArcSDE中使用Oracle分区表

最近好多用户对Oracle的分区表很感兴趣，也希望分区表也能应用的ArcSDE，询问该技术在ArcSDE是否可行，答案是肯定的。 不过因为在Oracle中分区表的对象基本上就是一个同名表，但是在ArcSDE中就有些不同了，因为如果进行版本编辑有A表、D表等，所以建议如果对

最近好多用户对Oracle的分区表很感兴趣，也希望分区表也能应用的ArcSDE，询问该技术在ArcSDE是否可行，答案是肯定的。

不过因为在Oracle中分区表的对象基本上就是一个同名表，但是在ArcSDE中就有些不同了，因为如果进行版本编辑有A表、D表等，所以建议如果对ArcSDE的某个要素类进行分区表的存储，建议该要素类为只读状态，也就是说修改的可能性小一点，这样做分区表才更有意义，而且分区表的存储一般针对某个表，可能这个表有千万或者上亿条记录，而且经常对这个表进行读操作，那么我们就可以根据某个字段将这些表进行分段存储。具体分区表的分段方式我就不介绍了。

怎么分区，按照什么分区，这就看用户在业务上怎么对这个表进行应用了。

1：没有任何的章法可循，没有固定条件查询，可以按照ObjectID进行分区

2：有些用户对日期感兴趣，对日期字段进行分区

3：有些用户对行政区感兴趣，对行政区编码进行分区

4：有些用户对地类感兴趣，可以将地位按一级编码进行分区

...............

所以说，怎么分区，还是按业务进行考虑

那么在ArcSDE中关于存储的配置文件在SDEHOME/etc/dbtune.sde里面，用户也可以使用dbtune命令将这些信息导出，然后修改，然后再导入。

##PARTITION
A_INDEX_RASTER             "PCTFREE 0 INITRANS 4  NOLOGGING "
XMLDB_INDEX_TAG            "YES"
XMLDB_INDEX_FULLTEXT       "NO"
XML_IDX_TEXT_UPDATE_METHOD "NONE"
XML_IDX_TEXT_UPDATE_MEMORY ""
XML_IDX_TEXT_TAG_STORAGE   ""
XML_IDX_STORAGE            "PCTFREE 0 INITRANS 4"
XML_IDX_INDEX_TEXT         ""
XML_IDX_INDEX_TAG          "PCTFREE 0 INITRANS 4 NOLOGGING "
XML_IDX_INDEX_STRING       "PCTFREE 0 INITRANS 4 NOLOGGING "
XML_IDX_INDEX_PK           "PCTFREE 0 INITRANS 4 NOLOGGING "
XML_IDX_INDEX_ID           "PCTFREE 0 INITRANS 4 NOLOGGING "
XML_IDX_INDEX_DOUBLE       "PCTFREE 0 INITRANS 4 NOLOGGING "
XML_DOC_VAL_LOB_STORAGE    "NOCACHE NOLOGGING CHUNK 4K PCTVERSION 5 DISABLE STORAGE IN ROW"
XML_DOC_UNCOMPRESSED_TYPE  "CLOB"
XML_DOC_STORAGE            "PCTFREE 0 INITRANS 4"
XML_DOC_MODE               "COMPRESSED"
XML_DOC_LOB_STORAGE        "NOCACHE NOLOGGING CHUNK 4K PCTVERSION 5 DISABLE STORAGE IN ROW"
XML_DOC_INDEX              "PCTFREE 0 INITRANS 4  NOLOGGING "
XML_COLUMN_STORAGE         "SDE_XML"
UI_TEXT                    "User Interface text for DEFAULTS"
ST_GEOM_LOB_STORAGE        " STORE AS ( ENABLE STORAGE IN ROW CHUNK 8K RETENTION CACHE)  "
S_STORAGE                  "PCTFREE 0 INITRANS 4"
S_INDEX_ALL                "PCTFREE 0 INITRANS 4  NOLOGGING "
RASTER_STORAGE             "BLOB"
RAS_STORAGE                "PCTFREE 0 INITRANS 4"
RAS_INDEX_ID               "PCTFREE 0 INITRANS 4 NOLOGGING "
GEOMETRY_STORAGE           "ST_GEOMETRY"
D_STORAGE                  "PCTFREE 0 INITRANS 4"
D_INDEX_STATE_ROWID        "PCTFREE 0 INITRANS 4  NOLOGGING "
D_INDEX_DELETED_AT         "PCTFREE 0 INITRANS 4  NOLOGGING "
BND_STORAGE                "PCTFREE 0 INITRANS 4"
BND_INDEX_ID               "PCTFREE 0 INITRANS 4 NOLOGGING "
BND_INDEX_COMPOSITE        "PCTFREE 0 INITRANS 4 NOLOGGING "
BLK_STORAGE                "PCTFREE 0 INITRANS 4 LOB(BLOCK_DATA) STORE AS (  ENABLE STORAGE IN ROW CHUNK 8K RETENTION CACHE)  "
BLK_INDEX_COMPOSITE        "PCTFREE 0 INITRANS 4 NOLOGGING "
B_STORAGE                  "PCTFREE 0 INITRANS 4 PARTITION BY RANGE (OBJECTID) (  PARTITION CUS_PART1 VALUES LESS THAN (50000) TABLESPACE ESRI,  PARTITION CUS_PART2 VALUES LESS THAN (100000) TABLESPACE ESRI2 ) "
B_INDEX_XML                "PCTFREE 0 INITRANS 4  NOLOGGING "
B_INDEX_USER               "PCTFREE 0 INITRANS 4  NOLOGGING "
B_INDEX_TO_DATE            "PCTFREE 0 INITRANS 4 NOLOGGING "
B_INDEX_ROWID              "PCTFREE 0 INITRANS 4 NOLOGGING "
B_INDEX_RASTER             "PCTFREE 0 INITRANS 4  NOLOGGING "
AUX_STORAGE                "PCTFREE 0 INITRANS 4"
AUX_INDEX_COMPOSITE        "PCTFREE 0 INITRANS 4 NOLOGGING "
ATTRIBUTE_BINARY           "BLOB"
A_STORAGE                  "PCTFREE 0 INITRANS 4"
A_INDEX_XML                "PCTFREE 0 INITRANS 4  NOLOGGING "
A_INDEX_USER               "PCTFREE 0 INITRANS 4  NOLOGGING "
A_INDEX_STATEID            "PCTFREE 0 INITRANS 4  NOLOGGING "
A_INDEX_SHAPE              "PCTFREE 0 INITRANS 4  NOLOGGING "
A_INDEX_ROWID              "PCTFREE 0 INITRANS 4  NOLOGGING "
END

"PCTFREE 0 INITRANS 4 PARTITION BY RANGE (OBJECTID) (  PARTITION CUS_PART1 VALUES LESS THAN (50000) TABLESPACE ESRI,  PARTITION CUS_PART2 VALUES LESS THAN (100000) TABLESPACE ESRI2 ) "

然后我将最上面的信息加载到从sdedbtune导出来的文档中，然后导入

C:\Users\Administrator>sdedbtune -o import -f c:\1.txt -i sde:oracle11g:orcl -s lish -u sde -p sde -q

Import DBTUNE Table. Are you sure? (Y/N): y

        Successfully imported from file "c:\1.txt"

导入之后我们进行一下验证

SQL>  select table_name,partition_name,tablespace_name from user_tab_partitions;

TABLE_NAME                     PARTITION_NAME                 TABLESPACE_NAME
------------------------------ ------------------------------ ----------------------
BIN$SVcacMx9QjSugD7de5WsPw==$0 CUS_PART2                      SDE
BIN$SVcacMx9QjSugD7de5WsPw==$0 CUS_PART1                      ESRI
BIN$WZM7+2pGTTKIYNXmkOSLzw==$0 CUS_PART1                      ESRI
BIN$WZM7+2pGTTKIYNXmkOSLzw==$0 CUS_PART2                      SDE
BIN$x6yBgW00SgyGPOTa1odkbQ==$0 CUS_PART1                      ESRI
BIN$x6yBgW00SgyGPOTa1odkbQ==$0 CUS_PART2                      SDE
CCC                            CUS_PART2                      ESRI2
CCC                            CUS_PART1                      ESRI

已选择8行。

SQL>  select objectid,rowid from ccc where objectid=1 or objectid=33333 or  objectid=49999 or objectid =50001 or objectid=88888  or objectid=66666;

  OBJECTID ROWID
---------- ------------------
         1 AAASe0AAHAAAFiFAAA
     33333 AAASe0AAHAAAF87AAJ
     49999 AAASe0AAHAAAGLbAAQ
     50001 AAASe1AAIAAAACFAAB
     66666 AAASe1AAIAAAAQWAAK
     88888 AAASe1AAIAAAAgMAAU

已选择6行。