如何使用Liquibase将存储过程导入MySQL

Question

我使用的是Gradle 2.7、MySQL 5.5.46和Liquibase Gradle 1.1.1插件。我有一个带有存储过程的文件，看起来像…

DELIMITER //
DROP PROCEDURE IF EXISTS MyProc;
CREATE PROCEDURE MyProc(
 IN param1 VARCHAR(25),
 IN param2 VARCHAR(5),
 OUT outParam VARCHAR(2500))
BEGIN
…
END //

我可以在MySQL命令行上很好地导入这个文件。然而，当我创建这个Liquibase变更集时…

<changeSet id="create_my_stored_proc" author="davea">
    <sqlFile path="src/main/resources/scripts/my_stored_proc.sql" stripComments="true"/>
</changeSet>

运行它，我得到错误

Caused by: liquibase.exception.DatabaseException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 'DELIMITER // 
DROP PROCEDURE IF EXISTS MyProc’ at line 1
    at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:316)
    at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:55)
    at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:122)
    at liquibase.database.AbstractJdbcDatabase.execute(AbstractJdbcDatabase.java:1227)
    at liquibase.database.AbstractJdbcDatabase.executeStatements(AbstractJdbcDatabase.java:1210)
    at liquibase.changelog.ChangeSet.execute(ChangeSet.java:550)
    ... 126 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER // 
DROP PROCEDURE IF EXISTS MyProc’ at line 1
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
    at com.mysql.jdbc.Util.getInstance(Util.java:383)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3847)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3783)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2447)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2594)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2541)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2499)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:844)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:748)
    at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:314)

我需要做些什么来纠正这个错误？

编辑：我删除了每个答案的"DELIMITER"行，使我的文件看起来像…

DROP PROCEDURE IF EXISTS MyProd;
CREATE PROCEDURE MyProc(
 IN param1 VARCHAR(25), 
 IN param2 VARCHAR(5),
 OUT outParam VARCHAR(2500))
BEGIN
…
END //

然而，在运行变更集时，我得到了这个错误…

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 'CREATE PROCEDURE MyProc(
 IN param1 VARCHAR(25), 
 IN param2 VAR' at line 3
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)
    at com.mysql.jdbc.Util.getInstance(Util.java:383)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3847)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3783)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2447)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2594)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2541)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2499)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:844)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:748)
    at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:314)
    ... 131 more

Answer 1

您不需要在文件中指定分隔符，而是必须在更改本身中指定它。要做到这一点，请从sql文件中删除包含DELIMITER的行，然后更改变更集，使其看起来像这样：

<changeSet id="create_my_stored_proc" author="davea">
    <sqlFile endDelimiter="//" path="src/main/resources/scripts/my_stored_proc.sql" stripComments="true" />
</changeSet>

Answer 2

行

DROP PROCEDURE IF EXISTS MyProc;

编辑的文件生成错误，因为它以默认的delimeter（；）结尾，而delimeter已更改为//。您可以使用更改后的delimeter//将此语句保存在sqlFile中，即：

DROP PROCEDURE IF EXISTS MyProc //

Answer 3

对于LiquiBase创建过程您需要使用xml创建过程，它将解决您的问题。还要编译它并检查是否没有错误。

<changeSet id="create_my_stored_proc" author="davea">
<createProcedure path="src/main/resources/scripts/my_stored_proc.sql"/>
<sql>alter procedure MyProc compile;</sql>
<sql>call MyProc();</sql>
<changeSet id="create_my_stored_proc" author="davea">