oracle 报Ora-01008错误：oracle 并非所有变量都已绑定的原因.TO_number()；动态执行select..into..语句时
1.sql_temp := \'UPDATE B38_back SET \'||code||\'=TO_NUMBER(nvl(\'||:NEW.BACAI||\',0))+\'||OnMonth || \' WHERE B0110= \'\'\'||:NEW.B0110||\'\'\' AND TO_CHAR(B38Z0,\'\'YYYYMM\'\') = TO_CHAR(TO_DATE(\'\'\'||:NEW.BACZ0||\'\'\'),\'\'YYYY\'\')||\'\'09\'\'\';
如果绿色处写到字符串里面，即不是变量，就会出现此错
例如如下:
sql_temp := \'UPDATE B38_back SET \'||code||\'=TO_NUMBER(nvl(:NEW.BACAI,0))+\'||OnMonth || \' WHERE B0110= \'\'\'||:NEW.B0110||\'\'\' AND TO_CHAR(B38Z0,\'\'YYYYMM\'\') = TO_CHAR(TO_DATE(\'\'\'||:NEW.BACZ0||\'\'\'),\'\'YYYY\'\')||\'\'09\'\'\';
2.TO_number()要写到字符串中，加号也要写到字符串中，变量写外面
3.
sql_temp1:=\'SELECT nvl(\'||code1|| \',0) \' ||\' from B38_back\' || \' WHERE B0110= \'\'\'||:NEW.B0110||\'\'\' AND TO_CHAR (B38Z0,\'\'YYYYMM\'\') = TO_CHAR(TO_DATE(\'\'\'||:NEW.BACZ0||\'\'\'),\'\'YYYY\'\')||\'\'08\'\'\' ;
execute immediate sql_temp1 INTO OnMonth;
如绿色所示放入，不要再sql_temp1中写into语句