Question

我是OFBiz的新手，在阅读电子书时，我无法区分这两种从数据库访问数据的方法。我谷歌但我没有找到合适的解释，请提前寻求帮助。< / p>

var employees = [

    {
        name: "Praveen",
        dateofbirth: new Date("July 24, 1992"),
        gender: "Male",
        salary: 12000,
        city: "Salem"
    }, {
        name: "Divya",
        dateofbirth: new Date("July 21, 1994"),
        gender: "Female",
        salary: 13500.33,
        city: "Thirupur"
    }, {
        name: "Elangovan",
        dateofbirth: new Date("May 5, 1989"),
        gender: "Male",
        salary: 14050.45,
        city: "Namakkal"
    }, {
        name: "Abinaya",
        dateofbirth: new Date("August 21, 1991"),
        gender: "Female",
        salary: 15230.78,
        city: "Thirupur"
    }, {
        name: "Surendran",
        dateofbirth: new Date("July 3, 1993"),
        gender: "Male",
        salary: 16302.44,
        city: "vellur"
    }, {
        name: "Hindhuja",
        dateofbirth: new Date("November 05, 1995"),
        gender: "Female",
        salary: 17000.11,
        city: "Salem"
    }
]

Answer 1

entity-and用于从数据库中获取数据，其中需要多个主键（复合PK）以获取单个记录，并且您希望所有匹配任何字段的记录，例如

等查询

select * from table where Colname=abc;

在实体条件下，您可以使用＆＃39; AND＆＃39; /＆＃39; OR＆＃39;来编写多个实体条件。子句。

错误是你在实体条件中使用的字段映射使用entity-expr

 <entity-condition list="anyList" entity-name="Table">
   <condition-expr field-name="colName1" from-field="variable1"/>
   <condition-expr field-name="colName2" from-field="variable2"/>
 </entity-condition>

Apache OFBiz：<entity-condition>和<entity-and>之间的区别？

1 个答案: