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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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