-- 创建源表CREATETABLEsource_table(idINT,name STRING,ageINT);-- 创建目标表CREATETABLEtarget_table(idINT,name STRING,ageINT); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 接下来,我们可以使用INSERT INTO SELECT语法将源表的数据插入到目标表中。INSERT INTO SELECT语法的基本语法如下: ...
建议使用INSERT INTO SELECT的方式进行批量导入。 导入结果介绍 INSERT INTO本身就是一个SQL命令,其返回结果如下所示: 执行成功 示例1 执行insert into tbl1 select * from empty_tbl;导入语句。返回结果如下。 Query OK, 0 rows affected (0.02 sec) 示例2 执行insert into tbl1 select * from tbl2;导入...
# 执行 Select 语句selected_df=spark.sql(select_query) 1. 2. 6. 插入数据到目标表 现在,我们可以使用 Insert Into Select 语法将选定的数据插入到目标表中。我们需要指定目标表的名称和插入模式。 # 插入数据到目标表selected_df.write.mode("append").insertInto("target_table") 1. 2. 7. 关闭 Spark...
publicstaticvoidmain(String[] args) throws JSQLParserException {Stringsql ="SELECT name,SUM(CASE WHEN sb.sblb = '1' THEN 1 ELSE 0 END) AS 待验证, SUM(CASE WHEN sb.sblb = '2' THEN 1 ELSE 0 END) AS 通过,SUM(CASE WHEN sb.sblb = '3' THEN 1 ELSE 0 END) AS 失效 FROM SBMP...
支持的SQL 支持以下类型的SQL语句,示例如下所示: INSERT INTO table_a SELECT * FROM table_b CREATE TABLE table_a AS SELECT * FROM table_b INSERT OVERWRITE TABLE table_c PARTITION (dt=20221228) SELECT * FROM table_d INSERT INTO table_c PARTITION (dt=20221228) SELECT * FROM table_d INSERT ...
(3,"ww",20)""".stripMargin)//创建另外一张表b ,并插入数据spark.sql("""|create table hadoop_prod.default.b(id int,name string,age int,tp string)using iceberg""".stripMargin)spark.sql("""|insert into hadoop_prod.default.bvalues(1,"zs",30,"delete"),(2,"李四",31,"update"),(4,...
scala> val results = spark.sql("SELECT id,name,age FROM people") results: org.apache.spark.sql.DataFrame= [id:string, name:string...1more field] scala> results.map(attributes =>"id:"+ attributes(0)+","+"name:"+attributes(1)+","+"age:"+attributes(2)).show()+---+ | value| ...
spark-sql --driver-class-path /home/hadoop/hive/lib/mysql-connector-java-5.1.30-bin.jar -f testsql.sql insert into table CI_CUSER_20141117154351522 select mainResult.PRODUCT_NO,dw_coclbl_m02_3848.L1_01_02_01,dw_coclbl_d01_3845.L2_01_01_04 from (select PRODUCT_NO from CI_CUSER_...
#启动hive程序$ hive#创建数据仓库hive>createdatabasesparksqltest;#创建数据表hive>createtableifnotexists\ sparksqltest.person(idint,name string,ageint);#切换数据库hive>usesparksqltest;#向数据表中添加数据hive>insertintopersonvalues(1,"tom",29);hive>insertintopersonvalues(2,"jerry",20); ...
spark.sql( """ |insert into hadoop_prod.default.a values (1,"zs",18),(2,"ls",19),(3,"ww",20) """.stripMargin) //创建另外一张表b ,并插入数据 spark.sql( """ |create table hadoop_prod.default.b (id int,name string,age int,tp string) using iceberg ...