在一個查詢中插入和更新

Question

我需要在單個查詢中更新和添加信息。

競爭對手表

  ID   Name    Age      DiveNr         Difficulty
|----|-------|----|------------------|-----------|
| 1  | Test  | 22 | 000110,011111    | 3,5       |
|____|_______|____|__________________|___________|

目前，我一直在嘗試使用

INSERT INTO `competitor`(`ID`, `Name`, `Age`, `DiveNr`, `Difficulty`) 
VALUES(@idSql,@NameSql,@AgeSql,@DiveNrSql,@DiffSql)

但是很快意識到這是不可能的。

我想要的是能夠向DiveNr和Difficulty添加更多項目到特定ID：

  ID   Name    Age      DiveNr             Difficulty
|----|-------|----|----------------------|-----------|
| 1  | Test  | 22 | 000110,011111,230400 | 3,5,6     |
|____|_______|____|______________________|___________|

像這樣嗎

SELECT ID FROM competitor WHERE ID=1;
INSERT INTO competitor(DiveNr,Difficulty)VALUES(@DiveNrSql,@DiffSql)

我將如何去做呢？

Answer 1

首先獲取該列的舊值：-

declare @oldDiveNrSql varchar(100)
declare @oldDiffSql varchar(100)

set @oldDiveNrSql = (select DiveNr from competitor where ID=@idSql)
set @oldDiffSql = (select Difficulty from competitor where ID=@idSql)

然后將舊值添加新值：-

declare @newDiveNrSql varchar(100)
declare @newDiffSql varchar(100)

set @newDiveNrSql =@oldDiveNrSql+','+@DiveNrSql
set @newDiffSql =@oldDiffSql','+@DiffSql

最后用新值更新您的行：

update competitor set DiveNr=@newDiveNrSql,Difficulty=@newDiffSql
where ID=@idSql