Question

这是我的剧本：

/// <summary>
/// The operation to be invoked by the action execution.
/// </summary>
public UML.Classes.Kernel.Operation operation { 
    get{
        // first get the operations guid which is stored in the Classifier_guid column
        XmlDocument operationGUIDxml = this.model.SQLQuery(@"select o.Classifier_guid from t_object o
                            where o.Object_ID = " + this.id.ToString());
        XmlNode operationGUIDNode = operationGUIDxml.SelectSingleNode(this.model.formatXPath("//Classifier_guid"));
        return this.model.getOperationByGUID(operationGUIDNode.InnerText);
    }
}

我得到的错误：

[root] #sh new.sh错误：列“2017”不存在第1行：... om log_archive其中date_part（'year'，log_time）=“2017”和...

当我尝试在没有变量的情况下手动完成时，会获得所需的结果。

请帮忙。

Answer 1

双引号（"）表示标识符。只需删除它们并使用裸号，你应该没问题：

psql -U postgres -d dbname -t -c "select id, time, code, level, message, trace  from logarchive where date_part('year',log_time) = $Year and date_part('month',log_time) = $Month and date_part('day',log_time) = $Day and date_part('hour',log_time) = $Hour and log_level = 'ERROR' limit 5;" > /tmp/List.txt

将Unix变量传递给psql date_part函数

1 个答案: