代码之家 › 专栏 › 技术社区 › Learn Hadoop

配置单元-SQL插入记录

hiveql hive hadoop

-1

Learn Hadoop · 技术社区 · 7 年前

在HIVE SQL中,我在两个不同的cloudera版本中运行了相同的查询。Cloudera VM 5.10未导致任何问题。但另一个版本cloudera-CDH-5.1.0-1。cdh5.1.0。p0.53为投掷误差。

hive> select * from t;
OK
Time taken: 1.803 seconds
hive> insert into table t values (1);
NoViableAltException(26@[])
        at org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectClause(HiveParser_SelectClauseParser.java:713)
        at org.apache.hadoop.hive.ql.parse.HiveParser.selectClause(HiveParser.java:35992)
        at org.apache.hadoop.hive.ql.parse.HiveParser.regular_body(HiveParser.java:33510)
        at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatement(HiveParser.java:33389)
        at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpression(HiveParser.java:33169)
        at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:1284)
        at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:983)
        at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:190)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:434)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:352)
        at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:995)
        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1038)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921)
        at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:422)
        at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:790)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:684)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:623)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
FAILED: ParseException line 1:20 cannot recognize input near 'values' '(' '1' in select clause
hive>

有什么想法吗?我必须选择哪个版本来学习。请告知。

3 回复 | 直到 7 年前

notNull 7 年前

在旧版本的CDH(如CDH-5.1)中,不支持插入记录,但在新版本的CDH中,它是受支持的功能。因此,与其尝试插入值,不如尝试使用Load data语句

如果您的文件是本地文件,则

hive> LOAD DATA LOCAL INPATH '<local-path-tofile>' INTO TABLE t;

如果文件在HDFS中,则

hive> LOAD DATA INPATH 'hdfs_file_or_directory_path'  INTO TABLE t;

roh 7 年前

您所尝试的是正确的,请确保表中有一列。如果有多个列,则需要所有字段的值。签出下图

我尝试的版本:

[cloudera@quickstart ~]$ hadoop version
Hadoop 2.6.0-cdh5.5.0
Subversion http://github.com/cloudera/hadoop -r fd21232cef7b8c1f536965897ce20f50b83ee7b2
Compiled by jenkins on 2015-11-09T20:37Z
Compiled with protoc 2.5.0
From source with checksum 98e07176d1787150a6a9c087627562c
This command was run using /usr/jars/hadoop-common-2.6.0-cdh5.5.0.jar

Learn Hadoop 7 年前

@roh公司

 hive> describe formatted t;
    OK
    # col_name              data_type               comment
    id                      int                     None
    # Detailed Table Information
    Database:               default
    Owner:                  learnhadoop
    CreateTime:             Fri Feb 23 21:25:15 IST 2018
    LastAccessTime:         UNKNOWN
    Protect Mode:           None
    Retention:              0
    Location:               hdfs://hadoopmasters:8020/user/hive/warehouse/t
    Table Type:             MANAGED_TABLE
    Table Parameters:
            transient_lastDdlTime   1519401315\
    # Storage Information
    SerDe Library:          org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
    InputFormat:            org.apache.hadoop.mapred.TextInputFormat
    OutputFormat:           org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputForm                                                                             at
    Compressed:             No
    Num Buckets:            -1
    Bucket Columns:         []
    Sort Columns:           []
    Storage Desc Params:
            serialization.format    1
    Time taken: 0.111 seconds, Fetched: 26 row(s)
    hive>