目录1. 使用 INSERT ... ON DUPLICATE KEY UPDATE1.1 示例1.2 解释2. 使用 REPLACE INTO2.1 示例2.2 解释2.3 注意事项3. 使用 MERGE 语句（适用于 mysql 8.0+）3.1 示例3.2 解释4.方法补充示
I am interested in studying some test logs from different projects, in order to build and test an application for school. I need to analyze the parts of the code which are tested, the bugs which appea
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