SQL> select substr(file_name, 1, instr(file_name, '/', -1)) from dba_data_files where rownum<2;;

SUBSTR(FILE_NAME,1,INSTR(FILE_

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/paic/g2bh8070/dev/of/data/oradata/fmsbkstg/

SQL> select substr(file_name,instr(file_name,'/',-1)+1) from dba_data_files where rownum<2;

SUBSTR(FILE_NAME,INSTR(FILE_NA

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system11.dbf

SQL> select file_name from dba_data_files where rownum<2;

FILE_NAME

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/paic/g2bh8070/dev/of/data/oradata/fmsbkstg/system11.dbf

SQL>

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获取数据文件目录和文件名的sql