首页 > 代码库 > [SQL] - Attempted to read or write protected memory. This is often an indication that other memory is corrupt. 问题之解决
[SQL] - Attempted to read or write protected memory. This is often an indication that other memory is corrupt. 问题之解决
场景：
使用 Oracle.DataAccess.dll 访问数据库时，OracleDataAdapter 执行失败。
异常：
System.AccessViolationException was unhandled
HResult=-2147467261
Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Source=Oracle.DataAccess
分析：
有问题的SQL
select distinct username from user u, role r where u.roleid = r.id and u.id = 1
正确的SQL
select distinct u.username from user u, role r where u.roleid = r.id and u.id = 1
总结：
规范使用 SQL 语法，指定表别名进行联合查询。
[SQL] - Attempted to read or write protected memory. This is often an indication that other memory is corrupt. 问题之解决
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