oracle定义变量
1 应用别的表的字段是用%type类型: g_dic_account t_isdt_data_dictionary.dic_value%type; -- 系统用户 g_dic_name t_isdt_data_dictionary.dic_value%type; -- 系统名称 G_countern t_isdt_data_dictionary.dic_value%type; --邮件内容 2 直接定义: 3 4 存储过程定义: procedure ISDT_REGIST_SENDEMAIL (P_USER_ID in varchar2,p_msg OUT VARCHAR2) is g_dic_account t_isdt_data_dictionary.dic_value%type; -- 系统用户 g_dic_name t_isdt_data_dictionary.dic_value%type; -- 系统名称 g_countern t_isdt_data_dictionary.dic_value%type; --邮件内容 begin ---- end ------------------------------------------------------------------------------------ PL/SQL Developer Test script 3.0 19 -- Created on 2017/3/10 by WWX397311 declare -- Local variables here dd varchar2(32); begin select max(t.task_id) into dd from T_ISDT_VEHICLE_TASK_LAST t where t.car_num = '粤BBU661' and rownum = 1 order by t.created_date desc; if dd is null then dbms_output.put_line('-------没有查询结果'); else dbms_output.put_line('I way see it,he is upset guy''s values is=' || dd); end if; end; 0 0
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