【Oracle】存储过程在字符串单引号'内拼接单引号'
http://blog.csdn.net/u011704894/article/details/44976557
一般变量里面接3个单引号
eg:
'DELETE FROM RDM_SUPP_DATA_CONF T WHERE T.SUB_SYS_ID=''' ||
I_SYS_ID || ''' AND T.FILE_NAME=''' || I_TAB_NAME || '''
AND T.TYPE = ''' || I_DATA_TYPE || '''';