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Oracle 动态sql参数带date类型无法执行的问题

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Jun 07, 2016 pm 05:34 PM

之前在写存储过程时，我有一个目的是通过开始时间和结束时间来创建一个视图，于是我这么写了一个过程: procedure prc_CreateVie

之前在写存储过程时，我有一个目的是通过开始时间和结束时间来创建一个视图，于是我这么写了一个过程:

procedure prc_CreateViewOBookTcert(p_startdate in date, --统计的开始日期
p_enddate in date) --统计的结束日期
is
v_sql varchar2(2000);
begin
v_sql :=
'create or replace view v_obook_tcert as
select * from(
select
nvl(t11.region,nvl(t22.region,t33.region)) region,
nvl(t11.site,0) site,
nvl(t22.useland,0) useland,
nvl(t33.project,0) project,
nvl((nvl(t11.site,0)+nvl(t22.useland,0)+nvl(t33.project,0)),0) subtotal--统计某一区域选址、用地、工程的和
from
(select t1.项目所在区 region,count(t1.项目所在区) site--统计选址
from ts_project t1
where t1.ref_business_id=1 and t1.发证日期 between '||p_startdate||' and '||p_enddate||'
group by t1.项目所在区) t11
full join
(select t2.项目所在区 region,count(t2.项目所在区) useland--统计用地
from ts_project t2
where t2.ref_business_id=3 and t2.发证日期 between '||p_startdate||' and '||p_enddate||'
group by t2.项目所在区) t22
on t11.region=t22.region
full join
(select t3.项目所在区 region,count(t3.项目所在区) project--统计工程
from ts_project t3
where t3.ref_business_id in(5,9,11) and t3.发证日期 between '||p_startdate||' and '||p_enddate||'
group by t3.项目所在区) t33
on t22.region=t33.region)';
execute immediate v_sql;
end prc_CreateViewOBookTcert;

黄色区域是关键地方，这个过程语法是没有问题的，，把参数变量值换成实际值也是有效的。可是就是在调用的时候无效。也就是说只要把实际值用变量来代替就无效了。其实这种情况经常会出现，在集合查询的时候也会出现这样的错误。今天突然想是不是空格什么的没注意，于是我改成了这样的:

--一书两证视图
procedure prc_CreateViewOBookTcert(p_startdate in date, --统计的开始日期
p_enddate in date) --统计的结束日期
is
v_sql varchar2(2000);
begin
v_sql :=
'create or replace view v_obook_tcert as
select * from(
select
nvl(t11.region,nvl(t22.region,t33.region)) region,
nvl(t11.site,0) site,
nvl(t22.useland,0) useland,
nvl(t33.project,0) project,
nvl((nvl(t11.site,0)+nvl(t22.useland,0)+nvl(t33.project,0)),0) subtotal--统计某一区域选址、用地、工程的和
from
(select t1.项目所在区 region,count(t1.项目所在区) site--统计选址
from ts_project t1
where t1.ref_business_id=1 and t1.发证日期 between '||chr(39)||p_startdate||chr(39)||' and '||chr(39)||p_enddate||chr(39)||'
group by t1.项目所在区) t11
full join
(select t2.项目所在区 region,count(t2.项目所在区) useland--统计用地
from ts_project t2
where t2.ref_business_id=3 and t2.发证日期 between '||chr(39)||p_startdate||chr(39)||' and '||chr(39)||p_enddate||chr(39)||'
group by t2.项目所在区) t22
on t11.region=t22.region
full join
(select t3.项目所在区 region,count(t3.项目所在区) project--统计工程
from ts_project t3
where t3.ref_business_id in(5,9,11) and t3.发证日期 between '||chr(39)||p_startdate||chr(39)||' and '||chr(39)||p_enddate||chr(39)||'
group by t3.项目所在区) t33
on t22.region=t33.region)';
execute immediate v_sql;
end prc_CreateViewOBookTcert;