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DB2如何查看当前用户模式及切换用户
1. 连接数据库：db2 connect to study2. 查询当前用户模式：select current schema from sysibm.sysdummy1 或 select current schema from sysib
1. 连接数据库：db2 connect to study2. 查询当前用户模式：select current schema from sysibm.sysdummy1 或 select current schema from sysib
