sqlite3如何插入数据

在SQLite中，可以使用sqlite3_exec()函数和sqlite3_prepare_v2()函数来插入数据。下面是一个插入数据的示例代码，其中包含两种不同的插入数据的方法：

引用:

sqlite3_exec(db,"begin;",0,0,0); // 开始事务
sqlite3_stmt *stmt;
const char* sql = "insert into t1 values(?,?,?,?)"; // SQL语句
sqlite3_prepare_v2(db,sql,strlen(sql),&stmt,0);
for(int i=0;i<nCount;++i) { // 循环插入数据
    sqlite3_reset(stmt);
    sqlite3_bind_int(stmt,1,i);
    sqlite3_bind_int(stmt,1,i*2); 
    sqlite3_bind_int(stmt,1,i/2);
    sqlite3_bind_double(stmt,1,i*i);
}
sqlite3_finalize(stmt);
sqlite3_exec(db,"commit;",0,0,0); // 提交事务

引用:

// 连接数据库
// 定义变量
char* zErrMsg = 0;
int rc;
sqlite3_stmt *stmt;

// 打开数据库
rc = sqlite3_open("test.db", &db);

// 创建表格
char* sql = "CREATE TABLE COMPANY("  \
             "ID INT PRIMARY KEY     NOT NULL," \
             "NAME           TEXT    NOT NULL," \
             "AGE            INT     NOT NULL," \
             "ADDRESS        CHAR(50)," \
             "SALARY         REAL );";

// 执行SQL语句
rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);

// 插入数据
const char* data = "Callback function called";
char *sql2 = "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY) "  \
              "VALUES (1, 'Paul', 32, 'California', 20000.00 ); " \
             "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY) "  \
              "VALUES (2, 'Allen', 25, 'Texas', 15000.00 ); "     \
             "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)" \
              "VALUES (3, 'Teddy', 23, 'Norway', 20000.00 );" \
             "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)" \
              "VALUES (4, 'Mark', 25, 'Rich-Mond', 65000.00 );";

// 将SQL语句编译成字节码
rc = sqlite3_prepare_v2(db, sql2, -1, &stmt, 0);

// 执行编译好的SQL语句
rc = sqlite3_step(stmt);

// 释放资源
sqlite3_finalize(stmt);
sqlite3_close(db);