svn"database disk image is malformed"错误解决

本文是svn出现类似如下问题的两种解决方案。

svn: E200030: database disk image is malformed

一、最简单的方法，复制其它人的.svn/wc.db替换。

二、类Unix系统（如Mac OS X），会自带sqlite3，windows系统要先下载sqlite3。

操作之前，切记备份.svn/wc.db

在命令行终端cd到.svn文件夹，

cd 项目文件夹/.svn

sqlite3 wc.db "pragma integrity_check"

sqlite3 wc.db "reindex nodes"

sqlite3 wc.db "reindex pristine"

至此，问题一般解决了。还不行，可以使用以下命令排查问题

sqlite3 wc.db "select sql from sqlite_master where name='NODES'"
sqlite3 wc.db "select sql from sqlite_master where name='I_NODES_PARENT'"

创建表NODES_COPY，作为表NODES的复本，sql语句：
sqlite3 wc.db "CREATE TABLE NODES_COPY ( wc_id INTEGER NOT NULL REFERENCES WCROOT (id), local_relpath TEXT NOT NULL, op_depth INTEGER NOT NULL, parent_relpath TEXT, repos_id INTEGER REFERENCES REPOSITORY (id), repos_path TEXT, revision INTEGER, presence TEXT NOT NULL, moved_here INTEGER, moved_to TEXT, kind TEXT NOT NULL, properties BLOB, depth TEXT, checksum TEXT REFERENCES PRISTINE (checksum), symlink_target TEXT, changed_revision INTEGER, changed_date INTEGER, changed_author TEXT, translated_size INTEGER, last_mod_time INTEGER, dav_cache BLOB, file_external TEXT, PRIMARY KEY (wc_id, local_relpath, op_depth) )"

复制表NODES的内容到表NODES_COPY，sql语句：

sqlite3 wc.db "insert into NODES_COPY select * from NODES"

删除NODES，sql语句：

sqlite3 wc.db "drop table NODES"

重新创建表NODES，sql语句：

sqlite3 wc.db "CREATE TABLE NODES ( wc_id INTEGER NOT NULL REFERENCES WCROOT (id), local_relpath TEXT NOT NULL, op_depth INTEGER NOT NULL, parent_relpath TEXT, repos_id INTEGER REFERENCES REPOSITORY (id), repos_path TEXT, revision INTEGER, presence TEXT NOT NULL, moved_here INTEGER, moved_to TEXT, kind TEXT NOT NULL, properties BLOB, depth TEXT, checksum TEXT REFERENCES PRISTINE (checksum), symlink_target TEXT, changed_revision INTEGER, changed_date INTEGER, changed_author TEXT, translated_size INTEGER, last_mod_time INTEGER, dav_cache BLOB, file_external TEXT, PRIMARY KEY (wc_id, local_relpath, op_depth) )"

sqlite3 wc.db "create index I_NODES_PARENT on NODES (wc_id, parent_relpath, op_depth)"

Copy NODES_COPY into NODES:

sqlite3 wc.db "insert into NODES select * from NODES_COPY"

Drop table NODES_COPY:

sqlite3 wc.db "drop table NODES_COPY"

Then you need to do something similar for PRISTINE, although this time
there is no extra index:

sqlite3 wc.db "select sql from sqlite_master where name='PRISTINE'"

Create PRISTINE_COPY
Copy PRISTINE into PRISTINE_COPY
Drop and recreate PRISTINE
Copy PRISTINE_COPY into PRISTINE
Drop PRISTINE_COPY