Question

我有以下代码，这是我想要应用触发器的表上触发器的缩小版函数，该表实际上有很多字段：

Create OR REPLACE FUNCTION PRC_EPV_() 
RETURNS trigger AS $PRC_EPV_$

begin

  Declare BaseCount bigint default 0;
  Declare PeakCount bigint default 0;
  Declare BaseSUM DOUBLE PRECISION default 0;
  Declare PeakSum DOUBLE PRECISION default 0;

    IF new.epv_kw_1 IS NOT NULL THEN
         set BaseSum = BaseSum + new.EPV_KW_1;
         set BaseCount = BaseCount + 1;
    END if;

     IF  new.EPV_KW_38 IS NOT NULL Then
         set BaseSum = BaseSum + new.EPV_KW_38;
         set PeakSum = PeakSum + new.EPV_KW_38;
         set BaseCount = BaseCount + 1;
         set PeakCount = PeakCount + 1;
     END if;
     IF new.EPV_KW_91 IS NOT NULL Then
         set BaseSum = BaseSum + new.EPV_KW_91;
         set BaseCount = BaseCount + 1;
     END if;

     set new.EPV_Peak_Sum = PeakSum ;
     set new.EPV_Base_Sum = BaseSum ;

     IF PeakCount > 0 Then
      set new.EPV_Peak_AVE =  new.EPV_peak_Sum / PeakCount * 4;
     END if;

     IF BaseCount > 0 Then
     set new.EPV_Base_AVE =  new.EPV_base_Sum / BaseCount * 4;
     END if;

    RETURN NEW;
    END;
$PRC_EPV_$ LANGUAGE plpgsql;

pgAdmin SQL编辑告诉我错误：“IF”处或附近的语法错误第11行：如果new.epv_kw_1是非空的那么

对于我的生活我无法解决为什么我尝试用'true'，'1'，'-1'，'1 = 1'替换条件语句一直在IF给我相同的语法错误

Answer 1

尝试更改

RETURNS trigger AS $PRC_EPV_$

begin

  Declare BaseCount bigint default 0;
  Declare PeakCount bigint default 0;
  Declare BaseSUM DOUBLE PRECISION default 0;
  Declare PeakSum DOUBLE PRECISION default 0;

    IF new.epv_kw_1

到

RETURNS trigger AS $PRC_EPV_$
Declare 
  BaseCount bigint default 0;
  PeakCount bigint default 0;
  BaseSUM DOUBLE PRECISION default 0;
  PeakSum DOUBLE PRECISION default 0;
begin
    IF new.epv_kw_1

if附近的Postgres语法错误

1 个答案: