1.一般变量的写法:
if (str_kind is not null) then l_str_kind := str_kind; v_wheresql := v_wheresql || ' and kind = :kind '; else l_str_kind := '1'; v_wheresql := v_wheresql || ' and 1 = :kind '; end if; |
2.时间段的写法:
if (dt_itstarttime is not null) then v_wheresql := v_wheresql || ' and createtime >= (' || to_date(dt_itstarttime, 'yyyy-mm-dd hh24:mi:ss') || ' )'; end; if (dt_itstarttime is not null) then v_wheresql := v_wheresql || ' and createtime <= (' || to_date(dt_itstarttime, 'yyyy-mm-dd hh24:mi:ss') || ' )'; end; if (dt_valstarttime is not null) then v_wheresql := v_wheresql || ' and validtime >= (' || to_date(dt_valstarttime, 'yyyy-mm-dd hh24:mi:ss') || ' )'; end; if (dt_valendtime is not null) then v_wheresql := v_wheresql || ' and validtime <= (' || to_date(dt_valendtime, 'yyyy-mm-dd hh24:mi:ss') || ' )'; end; 或: v_sql := v_sql || ' and trunc(a.creattime) >= to_date(:crestarttime,''yyyy-mm-dd'') '; v_sql := v_sql || ' and trunc(a.creattime) <= to_date(:creendtime,''yyyy-mm-dd'') '; v_sql := v_sql || ' and trunc(a.updatetime) >= to_date(:updstarttime,''yyyy-mm-dd'') '; v_sql := v_sql || ' and trunc(a.updatetime) <= to_date(:updendtime,''yyyy-mm-dd'') '; |
3.时间的写法:
v_sql := v_sql || ' and logtime >= to_date(:logtime, '|| ' ''yyyy-mm-dd hh24:mi:ss'')';
4.or的写法:
if (str_object is not null) then l_str_object := str_object; v_sql := v_sql || ' and ( objectid = :objectid or objectname = :objectname )'; else l_str_object := 1; v_sql := v_sql || ' and ( 1 = :objectid or 1 = :objectname ) '; end if; |
注意: 此时在using 中l_str_object要写两个
5.字符串的写法:('|| 字符串 ||')
举例:
--1.trim和rtrim v_sql := v_sql || ' and status in (' || ltrim(rtrim(str_status, ','), ',') || ') '; --2.字符串 v_sql := ' select netname from t_cms_netconf where netid = ' || str_netid || ' order by 1 '; --3.in v_sql := ' t.status in (' || rtrim(str_status, ',') || ')' --4.instr v_sql := v_sql || ' and instr(''|'' || b.typelist || ''|'', ''|'' || :typelist || ''|'') > 0'; |
6.数字的写法: ||数字
举例: v_sql := v_sql || ' and handletimes < ' || f_ums_config_in_qr('deploy/cms/task/maxsend', 5);
7.数组的写法:
sql中的写法:returning transactionid into :arr_tranactionid
using中的写法:returning bulk collect into v_arr_tranactionid --v_arr_tranactionid定义的临时变量
8.like的用法及%和_的处理
--1. if (str_specialname is not null) then l_str_specialname := '%' || lower(str_specialname) || '%'; v_sql := v_sql || ' and lower(a.specialname) like :specialname '; else l_str_specialname := '1'; v_sql := v_sql || ' and 1 = :specialname '; end if; if (str_tapecopyright is not null) then l_str_tapecopyright := '%' || lower(str_tapecopyright) || '%'; v_sql := v_sql || ' and lower(a.tapecopyright) like :tapecopyright '; else l_str_tapecopyright := '1'; v_sql := v_sql || ' and 1 = :tapecopyright '; end if; --2. if (str_specialname is not null) then l_str_specialname := '%' || replace(replace(lower(str_specialname), '%', '<%'), '_', '<_') || '%'; v_sql := v_sql || ' and lower(a.specialname) like :specialname escape ''<'' '; else l_str_specialname := '1'; v_sql := v_sql || ' and 1 = :specialname '; end if; if (str_tapecopyright is not null) then l_str_tapecopyright := '%' || replace(replace(lower(str_tapecopyright), '%', '<%'), '_', '<_') || '%'; v_sql := v_sql || ' and lower(a.tapecopyright) like :tapecopyright escape ''<'' '; else l_str_tapecopyright := '1'; v_sql := v_sql || ' and 1 = :tapecopyright '; end if; |
--经测试,两者写法均可.
9.页面上选择"按时间排序"的数据库处理方法
--按修改时间排序. 1-时间顺序，2-时间倒序
if ( i_sortorder = 2 ) then v_sql := v_sql || ' order by a.createtime desc, a.copyrightid '; else v_sql := v_sql || ' order by a.createtime asc, a.copyrightid '; end if; |
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