小编ggD*_*eat的帖子

我的问题是我尝试在我的查询中插入包含char的文本

我试图在char之前添加双反斜杠//但仍然无效.

ABNORMALLY.java.lang.IllegalArgumentException: 
org.hibernate.QueryException: Space is not allowed after parameter prefix ':' 

INSERT INTO TABLE_A  (A_ID, TYPE_ID, F_ID, REFNO, RECORD) VALUES 
( A_ID_SEQ.nextval, 4 , 9 , 'NY167', q'[LA2010167|SNIP' N CLIP|LMG|1.Unit no\\: 1046, 1 st Floor, Limbang Plaza, 98700 Limbang|2010-12-10||]')

在firebase云功能API参考之后,我试图实现计数增加/减少:

Uploads/
     - Posts/
          - post_1
          - post_2
          ...

     - Likes/
          - post_1/
               - Number: 4
          - post_2/
               - Number: 2
          ...

和,

 exports.LikeCount= functions.database.ref('/Posts/{postID}').onWrite(event => {
    const Ref     = event.data.ref;
    const postID  = event.params.postID; 
    const likeCount= Ref.parent.parent.child('/Likes/' + postID  + '/Number');           

    return likeCount.transaction(current => {         
        if (event.data.exists() && !event.data.previous.exists()) {
            return (current || 0) + 1;

        }else if (!event.data.exists() && event.data.previous.exists()) {
            return (current || 0) - 1;

        }

    }).then(() => {
        console.log("Done");         
    });
}); …