以下SQL命令实际上是针对MySQL的。我不是SQL专家,对H2的了解也不多。我的Spring应用程序引发异常,因为无法创建user_roles表。它有一个问题fk_username_idx
:
DROP TABLE IF EXISTS users;
DROP TABLE IF EXISTS user_roles;
CREATE TABLE users (
userid VARCHAR(5) NOT NULL,
username VARCHAR(45) NOT NULL ,
password VARCHAR(60) NOT NULL ,
enabled TINYINT NOT NULL DEFAULT 1 ,
PRIMARY KEY (userid));
CREATE TABLE user_roles (
user_role_id int(11) NOT NULL AUTO_INCREMENT,
userid varchar(5) NOT NULL,
role varchar(45) NOT NULL,
PRIMARY KEY (user_role_id),
UNIQUE KEY uni_username_role (role,userid),
KEY fk_username_idx (userid),
CONSTRAINT fk_username FOREIGN KEY (userid) REFERENCES users (userid));
错误日志:
Caused by: org.h2.jdbc.JdbcSQLException: Unbekannter Datentyp: "FK_USERNAME_IDX"
Unknown data type: "FK_USERNAME_IDX"; SQL statement:
CREATE TABLE user_roles ( user_role_id int(11) NOT NULL AUTO_INCREMENT, userid varchar(5) NOT NULL, role varchar(45) NOT NULL, PRIMARY KEY (user_role_id), UNIQUE KEY uni_username_role (role,userid), KEY fk_username_idx (userid), CONSTRAINT fk_username FOREIGN KEY (userid) REFERENCES users (userid)) [50004-191]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:179)
at org.h2.message.DbException.get(DbException.java:155)
at org.h2.command.Parser.parseColumnWithType(Parser.java:4059)
at org.h2.command.Parser.parseColumnForTable(Parser.java:3922)
at org.h2.command.Parser.parseCreateTable(Parser.java:5864)
at org.h2.command.Parser.parseCreate(Parser.java:4217)
at org.h2.command.Parser.parsePrepared(Parser.java:360)
at org.h2.command.Parser.parse(Parser.java:315)
at org.h2.command.Parser.parse(Parser.java:287)
at org.h2.command.Parser.prepareCommand(Parser.java:252)
at org.h2.engine.Session.prepareLocal(Session.java:560)
at org.h2.engine.Session.prepareCommand(Session.java:501)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1188)
at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:170)
at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:158)
at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:472)
... 47 more
您确定您的H2在MySQL兼容模式下运行吗?首先检查一下。通过查看连接字符串。例如这样的例子:
final SimpleDriverDataSource ds = new SimpleDriverDataSource();
ds.setDriverClass(Driver.class);
ds.setUrl("jdbc:h2:mem:test;MODE=mysql;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE");
ds.setUsername("sa");
ds.setPassword("");
FOREIGN KEY fk_username_idx (userid),
不受H2支持。移到FOREIGN
这里。
这样就可以了
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