mysql - 如何将 mysql 转储加载到 hsqldb 数据库？

Question

我有一个在 mysql 中创建数据库的 sql 文件:

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL';

CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci ;
USE `mydb` ;

-- -----------------------------------------------------
-- Table `mydb`.`machine`
-- -----------------------------------------------------
CREATE  TABLE IF NOT EXISTS `mydb`.`machine` (
  `id` INT NOT NULL ,
  `name` VARCHAR(45) NULL ,
  PRIMARY KEY (`id`) );


SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

现在我想将这个文件加载到 hsqldb 2 数据库中。我需要在 mysql 转储中更改什么才能将数据加载到 hsqldb 中？

目前我使用这段代码(groovy)来执行sql文件:

def embeddedDbSettings = [url:'jdbc:hsqldb:file:mydb', user:'sa', password:'', driver:'org.hsqldb.jdbcDriver'];
sql =  Sql.newInstance(embeddedDb);
sql.executeInsert new File("./sql/create_database.sql").text;

而且我一直遇到这个加密异常:

Exception in thread "main" java.sql.SQLException: unknown token
    at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.executeUpdate(Unknown Source)
    at groovy.sql.Sql.executeInsert(Sql.java:1440)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at de.hpi.ecir.eval_script.Convert2Excel.main(Convert2Excel.groovy:37)
Caused by: org.hsqldb.HsqlException: unknown token
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.ParserBase.read(Unknown Source)
    at org.hsqldb.ParserDDL.compileCreate(Unknown Source)
    at org.hsqldb.ParserCommand.compilePart(Unknown Source)
    at org.hsqldb.ParserCommand.compileStatements(Unknown Source)
    at org.hsqldb.Session.executeDirectStatement(Unknown Source)
    at org.hsqldb.Session.execute(Unknown Source)
    ... 13 more

Answer 1

1. 删除所有 SET 行
2. 将创建数据库的命令更改为:CREATE SCHEMA mydb AUTHORIZATION DBA
3. 删除所有如果不存在 - hsqldb 不支持此命令
4. 删除所有表扬(不是必需的，但您在本文中找到的代码需要)
5. 删除所有`
6. 用 bool 值替换 TINYINT( bool 值的 mysql 等价物)

7. 分别执行每条命令:

   String[] commands = new File("./sql/create_database.sql").text.split(";");
   
   for(String command: commands)
   {
   
    // new line is a delimiter in hsqldb
   
     sql.execute command.replace("\n", " ");
   }
   
   // remember to call shutdown otherwise hsqldb will not save your data
   sql.execute "SHUTDOWN"
   sql.close();