Error

1.[SQL Error] you have an error in your SQL Syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' order

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2.javax.persistence.nonuniqueresultexception: query did not return a unique result: 2

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3.org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates//main.html]")

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4.Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "{id}"

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5.org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/itemView.html]")

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6.MySQL 연동 에러 Access denied for user '유저아이디'@'localhost' (using password: YES)

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7.Plugin 'org.springframework.boot:spring-boot-maven-plugin:' not found

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8.nested exception is java.lang.IllegalArgumentException: Modifying queries can only use void or int/Integer as return type!

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