空间数据与索引分开存储管理

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 "COMPRESSED"

XML_DOC_UNCOMPRESSED_TYPE "CLOB"

XML_DOC_VAL_LOB_STORAGE "NOCACHE NOLOGGING CHUNK 4K PCTVERSION 5 DISABLE STORAGE IN ROW"

XML_IDX_STORAGE "PCTFREE 10 PCTUSED 40 INITRANS 4 TABLESPACE GISDATA"

XML_IDX_INDEX_DOUBLE "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "

XML_IDX_INDEX_ID "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "

XML_IDX_INDEX_PK "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX"

XML_IDX_INDEX_STRING "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "

XML_IDX_INDEX_TAG "PCTFREE 10 INITRANS 4 NOLOGGING TABLESPACE GISINDEX "

XML_IDX_INDEX_TEXT ""

XML_IDX_TEXT_TAG_STORAGE ""

XML_IDX_TEXT_UPDATE_MEMORY ""

XML_IDX_TEXT_UPDATE_METHOD "NONE"

END

修改完成后保存

步骤五：导入修改好的dbtune.sde配置文件

Sdedbtune -o import -f D:\666.txt -i esri_sde -u sde -p sde -N

步骤六：导入完成后，我们可以利用plsql查看导入结果

select * from DBTUNE t



Arccatalog连接数据库，将数据复制到数据库时，会看到config.keyword的值默认为我们新增的DATABASEGIS值（这表示我们的数据将会根据类型分别存储到这个值下的各个对应表空间，就是先前建好的四个表空间）





导入完成后，可以通过plsql看这四个表空间数据是不是正常对应存储。