字符串连接在 SQLite 中不起作用

2021-12-08 00:00:00 string sql operators concatenation sqlite

我正在尝试执行 SQLite 替换函数,但使用函数中的另一个字段.

I am trying to execute a SQlite replace function, but use another field in the function.

select  locationname + '<p>' from location;

在这个片段中,结果是一个 0 列表.我本来希望有一个字符串,其中包含来自 locationname 的文本和 '<p>' 文字.

In this snip, the result is a list of 0s. I would have expected a string with the text from locationname and the '<p>' literals.

推荐答案

尝试使用 || 代替 +

select  locationname || '<p>' from location;

来自 SQLite 文档:

||运算符是连接" - 它将其操作数的两个字符串连接在一起.

The || operator is "concatenate" - it joins together the two strings of its operands.

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