c++ - 将变量插入 SQLite 查询

Question

我声明如下。

 const QString createSQL = "CREATE TABLE customer (x INTEGER PRIMARY KEY ASC, y, z);" ;

我还有一个变量

 QString name="name1";

我需要将表“customer”的名称更改为 name1。如何将变量插入到上述 sqlite 查询中？

Answer 1

这是直接从文档中提取的。

// Execute query with positional binding using named placeholders
QVariantList contactValues;
contactValues << 1 << "Mike" << "Chepesky";
DataAccessReply reply = sc.executeAndWait(
    "insert into contact (id, firstname, lastname) values (:id, :firstname, :lastname)",
    contactValues);

和

// Execute query with positional binding using positional (?) placeholders
QVariantList contactValues;
contactValues << 1 << "Mike" << "Chepesky";
DataAccessReply reply = sc.executeAndWait(
    "insert into contact (id, firstname, lastname) values (?, ?, ?)",
    contactValues);

看documentation/source