[英]Execute a stored procedure in connected Oracle Database on Java
我在Oracle数据库中有一个存储过程,如下所示:
CREATE OR REPLACE PROCEDURE PSTATISTIC
AS
BEGIN
UPDATE PLACE_STATISTIC
SET POPULARITY = 0;
UPDATE PLACE_STATISTIC
SET POPULARITY = POPULARITY + 1
WHERE PLACE_ID IN (SELECT PLACE_COMMENT.PLACE_ID
FROM PLACE_COMMENT);
END PSTATISTIC;
当我在SQL Developer上调用它时:
EXECUTE PSTATISTIC
它正常执行, PLACE_STATISTIC
表已更新
但是,当我尝试在Java上使用它时:
String sql="EXECUTE HR.PSTATISTIC";
Statement statement=(Statement)connectionDB.createStatement();
statement.execute(sql);
它在Java上无法解决,并指出了一些错误:
java.sql.SQLSyntaxErrorException: ORA-00900: invalid SQL statement
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:439)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:395)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:802)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:436)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:521)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:194)
at oracle.jdbc.driver.T4CStatement.executeForRows(T4CStatement.java:1000)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1307)
at oracle.jdbc.driver.OracleStatement.executeInternal(OracleStatement.java:1882)
at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:1847)
at oracle.jdbc.driver.OracleStatementWrapper.execute(OracleStatementWrapper.java:301)
如何在Java上执行我的PSTATISTIC
过程? 我授予了所有必要的特权
您需要使用CallableStatement来执行存储过程
String procName= "{call PSTATISTIC}";
CallableStatement cs = conn.prepareCall(procName);
cs.executeQuery();
要从Java代码执行存储过程,您需要使用CallableStatement。 语句不能用于执行Stored Proc。
Connection con = getConnection();
CallableStatement cs = null;
try {
cs = con.prepareCall("{call EXECUTE PSTATISTIC}");
cs.execute();
} catch (SQLException e) {
System.err.println("SQLException: " + e.getMessage());
}
finally {
if (cs != null) {
try {
cs.close();
} catch (SQLException e) {
System.err.println("SQLException: " + e.getMessage());
}
}
if (con != null) {
try {
con.close();
} catch (SQLException e) {
System.err.println("SQLException: " + e.getMessage());
}
}
}
}
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