How do I use Liquibase to import a stored procedure into MySQL?

Question

I’m using Gradle 2.7, MySQL 5.5.46 and the Liquibase-Gradle 1.1.1 plugin. I have a file with a stored procedure that looks like …

DELIMITER //

DROP PROCEDURE IF EXISTS MyProc;

CREATE PROCEDURE MyProc(
 IN param1 VARCHAR(25),
 IN param2 VARCHAR(5),
 OUT outParam VARCHAR(2500))

BEGIN
…
END //

I’m able to import this file fine on a MySQL command line. However, when I create this Liquibase changeset …

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

And run it, I get the error

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)

What do I need to do to correct this error?

Edit: I removed the “DELIMITER” line per the answer making my file look like …

DROP PROCEDURE IF EXISTS MyProd;

CREATE PROCEDURE MyProc(
 IN param1 VARCHAR(25), 
 IN param2 VARCHAR(5),
 OUT outParam VARCHAR(2500))

BEGIN
…
END //

However, upon running the changeset I get this error …

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

Rather than specifying the delimiter in the file, you have to specify it in the change itself. To do that, remove the line containing DELIMITER from the sql file, and then alter the changeset so it looks like this:

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