在我们使用ArcSDE对矢量数据和栅格数据进行存储的时候，有必要将相关的表及索引分开存储。也就是说当用户访问一张表，首先会访问表的索引，然后根据索引来快速定位访问表的内容，那么表与表索引就会占据大量的磁盘I/O资源，从而导致访问表的效率下降。所以我们应该将表与索引分配在不同的表空间，将不同的表空间存储到不同的磁盘上，这样访问表时，就可以使用不同的磁盘I/O，提高访问效率
步骤一：创建存储矢量、栅格数据及对应的索引存储表空间
create tablespace GISDATA datafile 'D:\GISDATA.dbf' size 1000m autoallocate;
create tablespace GISINDEX datafile 'D:\GISINDEX.dbf' size 1000m autoallocate;
create tablespace RASTERDATA datafile 'D:\RASTERDATA.dbf' size 1000m autoallocate;
create tablespace RASTERINDEX datafile 'D:\RASTERINDEX.dbf' size 1000m autoallocate;
步骤二：设置自增长
-- autoextend
declare
cursor v_file is
select file_id from dba_data_files where autoextensible = 'NO' ;
begin
for v_i in v_file loop
execute immediate 'alter database datafile ' || v_i.file_id ||
' autoextend on next 1024M maxsize unlimited';
end loop;
end;
步骤三：创建sde服务
sdeservice -o create -p sde -d "ORACLE,NJ" -n -i esri_sde -H "C:\Program Files\ArcGIS\ArcSDE\ora11gexe"（具体操作见本博客专题介绍）
步骤四：修改dbtune.sde配置文件
该文件位于sde安装目录下（默认为Program Files\ArcGIS\ArcSDE\ora11gexe\etc下，修改前注意备份原文件）
新增下列参数配置
##DATABASEGIS
GEOMETRY_STORAGE "ST_GEOMETRY"
ATTRIBUTE_BINARY "BLOB"
RASTER_STORAGE "BLOB"
UI_TEXT "User Interface text description for DATABASEGIS keyword"
COMMENT "Any general comment for DATABASEGIS keyword"
S_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA"
S_INDEX_ALL "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX"
B_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA "
B_INDEX_ROWID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX"
B_INDEX_USER "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
B_INDEX_RASTER "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX "
B_INDEX_SHAPE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
B_INDEX_TO_DATE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX"
B_INDEX_XML "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
A_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA "
A_INDEX_ROWID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
A_INDEX_SHAPE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
A_INDEX_STATEID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
A_INDEX_USER "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
A_INDEX_XML "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
D_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA"
D_INDEX_STATE_ROWID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
D_INDEX_DELETED_AT "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "
RAS_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE RASTERDATA"
RAS_INDEX_ID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX "
BND_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE RASTERDATA "
BND_INDEX_COMPOSITE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX "
BND_INDEX_ID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX"
AUX_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE RASTERDATA"
AUX_INDEX_COMPOSITE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX "
BLK_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE RASTERDATA"
BLK_INDEX_COMPOSITE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE RASTERINDEX "
XML_DOC_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA"
XML_DOC_INDEX "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX"
XML_DOC_LOB_STORAGE "NOCACHE NOLOGGING CHUNK 4K PCTVERSION 5 DISABLE STORAGE IN ROW"
XML_DOC_MODE "CO