答案 0 :(得分:5)
SELECT Cast(Substring_index(Substring_index(col, '"value";s:', -1), ':"http', 1) AS UNSIGNED) + 1
FROM TableName
+---------------------------------------------------------------------------------------------+
| Cast(Substring_index(Substring_index(col, '"value";s:', -1), ':"http', 1) AS UNSIGNED) + 1 |
+---------------------------------------------------------------------------------------------+
| 70 |
+---------------------------------------------------------------------------------------------+
Clears控制台缓冲区和相应的显示控制台窗口 信息。