Question

我是PostgreSQL的新手并试图执行一些查询。我在.sql文件中编写了一个函数，并从一个.bat文件中调用了这个sql文件，该文件可以从命令行执行。

Installer.bat＆gt; abc.sql＆gt; （sql文件已编写函数）

功能是，

CREATE FUNCTION getLabelTranslation(p_webForm varchar(50), p_labelName varchar(50), p_languageID int, p_fallbackLanguageID int)
RETURNS VARCHAR(1000) AS $$ 
DECLARE
  v_retval VARCHAR(1000) := p_labelName;    
BEGIN
    IF EXISTS (SELECT ID FROM LabelTextList WHERE WebForm=p_webForm AND LabelName=p_labelName AND LanguageListID=p_languageID) THEN
        v_retval:= (SELECT Text FROM LabelTextList WHERE WebForm=p_webForm AND LabelName=p_labelName AND LanguageListID=p_languageID);
        RETURN v_retval;
    ELSE IF EXISTS (SELECT ID FROM LabelTextList WHERE WebForm='Any' AND LabelName=p_labelName AND LanguageListID=p_languageID) THEN
        v_retval:= (SELECT Text FROM LabelTextList WHERE WebForm='Any' AND LabelName=p_labelName AND LanguageListID=p_languageID );
        RETURN v_retval;
    ELSE IF p_languageID<>p_fallbackLanguageID AND EXISTS (SELECT ID FROM LabelTextList WHERE WebForm=p_webForm AND LabelName=p_labelName AND LanguageListID=p_fallbackLanguageID)      THEN    
        v_retval:= (SELECT Text FROM LabelTextList WHERE WebForm=p_webForm AND LabelName=p_labelName AND LanguageListID=p_fallbackLanguageID);
        RETURN v_retval;
    ELSE IF p_languageID<>p_fallbackLanguageID AND EXISTS (SELECT ID FROM LabelTextList WHERE WebForm='Any' AND LabelName=p_labelName AND LanguageListID=p_fallbackLanguageID) THEN
        v_retval:= (SELECT Text FROM LabelTextList WHERE WebForm='Any' AND LabelName=p_labelName AND LanguageListID=p_fallbackLanguageID );
        RETURN v_retval;
    END IF; 

END;
$$ LANGUAGE plpgsql;

错误

ERROR:  syntax error at or near ";" LINE 20: END; (i.e. last END; statement)

Answer 1

ELSIF / ELSEIF而不是ELSE IF。如果您将单词分开，则它是一个新的IF语句，并且每个IF都必须具有相应的END IF。

Windows - Postgres：语法错误在或附近＆＃34 ;;＆＃34;结束;

1 个答案: