java数据库编程实验

网站编辑2023-07-03 17:02:10439

1. 安装 MySQL 数据库：在 Prompt 目录下执行以下命令：

pip install mysql-server

2. 创建一个 CSV 文件，将实验数据导入到该文件中：

``` import com.csvcreatetable; import com.csvcreatetable colmns; import com.csvcreatetable *table;

char ** data; int n; int columns; int num_rows;

if (!csvcreatetable || !colmns.isempty()) { csvcreatetable ((char)table, (char)data, n, columns=n); colmns = (char)table; csvcreatetable ((char)data, (char**)colmns, numrows=numrows); return colmns; }

if (!csvcreatetable.isEmpty()) { for (int i = 0; i < numrows; i++) { for (int j = 0; j < columns; j++) { csvcreatetable data ((char)data, (char)table, i, j, numrows=num_rows); } } return data; } ```

3. 创建连接：

csvcreatetable connection (CSV char* data, int num_rows); connection = csvcreatetable.connect("mydatabase", 10);

4. 插入数据：

csvcreatetable mydata ((char**)table, (char**)data, num_rows); mydata[0] = ''; csvcreatetable mycolmns ((char**)data, (char**)table, (char**)colmns);

5. 删除数据：

csvcreatetable mydata ((char**)data, (char**)table, (char**)colmns); mydata[0] = ''; csvcreatetable mycolmns ((char**)data, (char**)table, (char**)colmns);

6. 查询数据：

csvcreatetable mydata ((char**)data, (char**)table, (char**)colmns); mydata[0] = 'SELECT * FROM mytable WHERE name = '.' AND column = '';

7. 删除 table:

csvcreatetable mydata ((char**)data, (char**)table, (char**)colmns); mydata[0] = ''; csvcreatetable mycolmns (((char**)table), ((char**)colmns), ((char**)table));

完整代码如下：

``` import com.csvcreatetable; import com.csvcreatet