Oracle Multi Column Drop not support yet

[StealthQli]

I want to parse this sql:

alter table emp drop (lovename,loveage);

and this sql has been tested in oracle database running well.
Here are my codes:

    private static List<String> test_alter(String alterSql) throws JSQLParserException{
        Alter alter=(Alter) CCJSqlParserUtil.parse(alterSql);
        List<AlterExpression> expressions=alter.getAlterExpressions();
        List<String> result=new ArrayList<>();
        for (AlterExpression ae:
             expressions) {
            result.add(ae.toString());
        }
        return result;
    }

Then I get a message of the exception:

net.sf.jsqlparser.JSQLParserException: Encountered unexpected token: "(" "("
    at line 1, column 22.

Was expecting one of:

    "COLUMN"
    "CONSTRAINT"
    "INDEX"
    <S_IDENTIFIER>
    <S_QUOTED_IDENTIFIER>


	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatement(CCJSqlParserUtil.java:165)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parse(CCJSqlParserUtil.java:59)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parse(CCJSqlParserUtil.java:37)
	at SqlParser.test_alter(SqlParser.java:341)
	at SqlParser.jsqlparser2(SqlParser.java:487)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "(" "("
    at line 1, column 22.

Was expecting one of:

    "COLUMN"
    "CONSTRAINT"
    "INDEX"
    <S_IDENTIFIER>
    <S_QUOTED_IDENTIFIER>

	at net.sf.jsqlparser.parser.CCJSqlParser.generateParseException(CCJSqlParser.java:26538)
	at net.sf.jsqlparser.parser.CCJSqlParser.jj_consume_token(CCJSqlParser.java:26377)
	at net.sf.jsqlparser.parser.CCJSqlParser.AlterExpression(CCJSqlParser.java:16472)
	at net.sf.jsqlparser.parser.CCJSqlParser.AlterTable(CCJSqlParser.java:16563)
	at net.sf.jsqlparser.parser.CCJSqlParser.SingleStatement(CCJSqlParser.java:159)
	at net.sf.jsqlparser.parser.CCJSqlParser.Statement(CCJSqlParser.java:81)
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatement(CCJSqlParserUtil.java:163)
	... 26 more

Here are my dependencies in pom.xml(though I think it helps little):

    <dependencies>
        <dependency>
            <groupId>com.github.jsqlparser</groupId>
            <artifactId>jsqlparser</artifactId>
            <version>4.0</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

Is Jsqlparser not supported to parse oracle sql?Or just the sql of this pattern cannot be parsed?

[manticore-projects]

Greetings

On Fri, 2021-05-21 at 01:04 -0700, StealthQli wrote: Or just the sql of this pattern cannot be parsed?

This one. There is no support for multiple column drops yet. Otherwise it works fine: ALTER TABLE emp DROP lovename ; ALTER TABLE emp DROP loveage ; Maybe change the Caption of the issue to "Oracle Multi Column Drop not support yet" and I would take a look into that. Best regards Andreas

[StealthQli]

ok,but I don't konw how to change the Caption

[wumpz]

This is indeed a new issue. You should then create one. This discussion thing is used for exactly this: discussions. :) However as @manticore-projects already mentioned, this should not be a problem at all.