Using query with alias in java

Question

I'm getting an error when I use Alias inside my query in java..

19:34:26.852 java.sql.SQLSyntaxErrorException: ORA-00923: FROM keyword not found where expected

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:884)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1167)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1289)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3584)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3628)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1493)
at com.tlc.common.DbWrapper.QueryDataRows(DbWrapper.java:327)
at com.tlc.sky.admin.modules.reports.m.WalletToDistributorReportCollection.hasRows(WalletToDistributorReportCollection.java:73)
at com.tlc.sky.admin.modules.reports.c.WalletToDistributorReportCommand.execute(WalletToDistributorReportCommand.java:46)
at com.tlc.sky.admin.modules.reports.main.test.main(test.java:19)
  ~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

My query

String sql = "SELECT COLUMN1 AS 'ALIAS1', COLUMN2 AS 'ALIAS2' FROM TABLE1 WHERE CONDITION1 = CONDITION";
  or
String sql = "SELECT COLUMN1 AS " + "ALIAS1" + ", COLUMN2 AS " + "ALIAS2"  + " FROM TABLE1 WHERE CONDITION1 = CONDITION";

CAN SOMEONE PLEASE HELP ME.. I USED "' '" AND IT INDICATES ERROR ON THE COMPILE TIME OF THE JAVA..

I used Eclipse IDE.. and my database is Oracle..

Niklas · Accepted Answer · 2016-05-03 12:12:19Z

2

Run it without the single quotes:

String sql = "SELECT COLUMN1 AS ALIAS1, COLUMN2 AS ALIAS2 FROM TABLE1 WHERE CONDITION1 = CONDITION";

answered May 3, 2016 at 12:12

Niklas

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4 Comments

J. Chomel Over a year ago

Though this would not work if he has spaces in the aliases.

Niklas Over a year ago

ah, yes, you are right. For aliases with several words it will not work. However, for the alias1 and alias2 it will.

T Gray Over a year ago

If he uses multi-word aliases with space characters in a java application, he's going to have more problems than merely quoting in the query.

J. Chomel Over a year ago

It depends... He might only need the result to display on a report.

J. Chomel · Accepted Answer · 2016-05-03 12:09:50Z

1

Try escaping the ":

String sql = "SELECT COLUMN1 as \"ALIAS1\", COLUMN2 as \"ALIAS2\" FROM TABLE1 WHERE CONDITION1 = CONDITION";

answered May 3, 2016 at 12:09

J. Chomel

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