SQLite如何使用PHP PDO读取特定行
问题描述：
这是表格:
名称:"TagValues"
列1:标记"
列2:值"
条目数:80
尝试读取带有Tag值"CustomTag"的特定行的查询是什么
Here is the table:
Name: "TagValues"
Column1: "Tag"
Column2: "Values"
No Of Entries: 80
What is the query to read a specific row with a Tag value "CustomTag" I Tried these
$UserTag = "CustomTag";
$query = "SELECT Tag FROM TagValues WHERE Tag='$UserTag'"; //it didn't work
$query = "SELECT FROM TagValues WHERE Tag='$UserTag'"; //it didn't work
$query = "SELECT * FROM TagValues WHERE Tag='$UserTag'"; //it didn't work
确切的语法是什么?
Whats is the exact syntax?
答
UserTag = " ;
UserTag = "CustomTag";
查询 = "
query = "SELECT Tag FROM TagValues WHERE Tag='
UserTag'" ; // 它不起作用
UserTag'"; //it didn't work