Daily Archives: July 22, 2015

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HBase Functions Cheat Sheet 3

This entry was posted in HBase on July 22, 2015 by Siva

HBase Functions Cheat Sheet SHELL [cloudera@quickstart ~]$ hbase shell LIST hbase(main):003:0> list SCAN Scanner specifications may include one or more of: TIMERANGE, FILTER, LIMIT, STARTROW, STOPROW, TIMESTAMP, MAXLENGTH, or COLUMNS, CACHE. If no columns are specified, all columns will be scanned. To scan all members of a column family, leave the qualifier empty as in ‘col_family:’ hbase(main):012:0> scan ‘myFirstTable’ SCAN WITH FILTER hbase(main):079:0> scan ‘sales_fact’, { FILTER => “KeyOnlyFilter()”} –> […]

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Good SQL Queries Collection

This entry was posted in SQL Interview Questions on July 22, 2015 by Siva

Good SQL Queries Collection /* CREATE TABLE FOR DEPARTMENT */ CREATE TABLE DEPARTMENT ( “DEPT_ID” NUMBER, “DEPT_NAME” VARCHAR2(30), PRIMARY KEY (“DEPT_ID”) ) /* CREATE TABLE FOR EMP */ CREATE TABLE EMPLOYEE ( “EMP_ID” NUMBER, “MGR_ID” NUMBER, “DEPT_ID” NUMBER, “EMP_NAME” VARCHAR2(30), “SAL” NUMBER, “DOJ” DATE, PRIMARY KEY (“EMP_ID”) ENABLE, FOREIGN KEY (“MGR_ID”) REFERENCES EMPLOYEE (“EMP_ID”) ENABLE, FOREIGN KEY (“DEPT_ID”) REFERENCES DEPARTMENT (“DEPT_ID”) ENABLE ) /* INSERT STATEMENT FOR DEPARTMENT */ INSERT […]

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