如何将 mysql 转储加载到 hsqldb 数据库?
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;
现在我想将此文件加载到 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;
并且我一直得到这个加密异常:
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
I have a sql file that creates a database in mysql:
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;
Now I would like to load this file into hsqldb 2 database. What do I need to change in the mysql dump to load the data into hsqldb?
Currently I use this code (groovy) to execute the sql file:
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;
and all the time I got this crypting exception:
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
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CREATE SCHEMA mydb AUTHORIZATION DBA
如果不存在
- hsqldb 不支持此命令单独执行每个命令:
CREATE SCHEMA mydb AUTHORIZATION DBA
if not exists
- hsqldb does not support this commandExecute each command separately:
您还必须:
从 this :
到 this :
You also have to :
from this :
to this :
您不必单独运行每个命令,如果您一次运行所有脚本,只要所有令牌都有效,hsqldb 就可以正常工作。
You don't have to run each command separately, hsqldb works fine if you run the scripts all at once, as long as all your tokens are valid.
使用 IntelliJ IDEA 解决了这个问题:
Solved this problem using IntelliJ IDEA :
我依靠 RazorSQL 解决了这个问题。它不是免费的,但使用评估版本,您足以执行从 MySQL 到 HSQLDB 的转换。它还支持其他数据库转换。
我在转换过程中检测到的唯一问题是主键。所以基本上,以下生成的代码摘录不会为我运行:
我必须删除 IDENTITY 位。
I solved this issue by relying on RazorSQL. It is not for free, but with the evaluation version you have enough for performing the conversion from MySQL to HSQLDB. It also supports other DB conversions.
The only problem I detected during the conversion was the primary keys. So basically, the following generated code excerpt would not run for me:
I had to remove the IDENTITY bit.