oracle ZQX_XSM_WX_PC_RECORD表biao_qian字段内容用逗号（,）分割，并转换多条数据 sql怎么写

Oracle中的ZQX_XSM_WX_PC_RECORD表中，如果`biao_qian`字段的内容确实是以逗号分隔的值列表，你可以使用`REGEXP_SUBSTR()`函数结合`CONNECT BY`循环来提取并显示多条数据。假设你想获取每一条记录的第一部分，直到遇到下一个逗号为止，可以尝试以下SQL：

SELECT level,
       REGEXP_SUBSTR(biao_qian, '[^,]+', 1, level) AS value
FROM (
    SELECT biao_qian,
           LEVEL + LENGTH(MAX(SYS_CONNECT_BY_PATH(biao_qian, ', '))) AS start
    FROM ZQX_XSM_WX_PC_RECORD
    WHERE biao_qian IS NOT NULL
    START WITH LENGTH(biao_qian) > 0
    CONNECT BY prior biao_qian = ',' || biao_qian
)
WHERE ROWNUM <= 1
ORDER BY start;

这个查询首先通过`SYS_CONNECT_BY_PATH()`生成了每个值的完整路径，然后从该路径中找到每个值的起始位置。`REGEXP_SUBSTR()`则用于从指定位置开始提取每个值。

相关问题

String jsonInput = "{"Appkey":"mEwead5ZQx0psM6b","Sign":"9d5cd39aab1adb6837e044e2eed0dd82","Timestamp":Timestamp,"TargetNodeId":"gdwalzz","TargetDatabaseId":"WalzzPaperERP","QueryID":0,"SQLCommand":"select * from Users"}";，mEwead5ZQx0psM6b，9d5cd39aab1adb6837e044e2eed0dd82等等几个，替换成变量提供给我，变量就用Appkey，Sign以此类推

以下是使用变量替换的代码示例：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class HttpRequestUtil {
    public static String sendPostRequest(String url, String appKey, String sign, long timestamp, String targetNodeId, String targetDatabaseId, int queryId, String sqlCommand) throws IOException {
        URL requestUrl = new URL(url);
        HttpURLConnection connection = (HttpURLConnection) requestUrl.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("cache-control", "no-cache");
        connection.setRequestProperty("Postman-Token", "286f9b9a-e6ee-4e83-b37b-aae5d6ea7a5e");
        connection.setDoOutput(true);

        String jsonInput = String.format("{\"Appkey\":\"%s\",\"Sign\":\"%s\",\"Timestamp\":%d,\"TargetNodeId\":\"%s\",\"TargetDatabaseId\":\"%s\",\"QueryID\":%d,\"SQLCommand\":\"%s\"}",
                appKey, sign, timestamp, targetNodeId, targetDatabaseId, queryId, sqlCommand);

        try (OutputStream outputStream = connection.getOutputStream()) {
            byte[] input = jsonInput.getBytes("utf-8");
            outputStream.write(input, 0, input.length);
        }

        int responseCode = connection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();
            return response.toString();
        } else {
            throw new IOException("HTTP request failed with code: " + responseCode);
        }
    }

    public static void main(String[] args) {
        try {
            String url = "http://www.walzz.com/api/walzzerpapi.asq";
            String appKey = "mEwead5ZQx0psM6b";
            String sign = "9d5cd39aab1adb6837e044e2eed0dd82";
            long timestamp = 1690161912433L;
            String targetNodeId = "gdwalzz";
            String targetDatabaseId = "WalzzPaperERP";
            int queryId = 0;
            String sqlCommand = "select * from Users";

            String response = sendPostRequest(url, appKey, sign, timestamp, targetNodeId, targetDatabaseId, queryId, sqlCommand);
            System.out.println(response);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

在这个示例中，我添加了新的参数并将它们传递给 `sendPostRequest` 方法。你可以使用这些参数来动态构建 JSON 输入字符串。确保将这些变量替换为你实际的值。

matlab语义分割 图像增强

根据引用和引用，在Matlab中进行图像语义分割的图像增强主要包括旋转、对称上下左右翻转和缩放等操作。数据增强的主要目的是通过生成一系列变化后的图像，扩充训练数据集，提高模型的鲁棒性和性能。具体来说，可以使用函数`doAugmentate`来实现图像增强，在该函数中，可以通过修改参数`imgnum`来控制生成的图像数量。

此外，引用提到数据增强可以改进不同计算机视觉任务的模型结果，包括图像分类和图像语义分割。因此，对于Matlab语义分割任务，采用图像增强可以提高模型的性能和准确度。

总结起来，Matlab语义分割的图像增强方法主要包括旋转、对称上下左右翻转和缩放等操作，通过增加数据量和多样性来提高模型性能和鲁棒性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [语义分割 图像增强（数据扩充）教程](https://blog.csdn.net/zqx951102/article/details/109543140)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *3* [WB color gainer：可以提高图像分类和语义分割精度的WB增强器（ICCV 2019）-matlab开发](https://download.csdn.net/download/weixin_38589795/19266438)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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