Showing posts with the label HPCC

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SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A

Top features of HPCC -High performance Computing Cluster

[Hadoop Jobs] HPCC (High-Performance Computing Cluster) was elaborated and executed by LexisNexis Risk Solutions. The creation of this data processing program started in 1999 and applications remained in manufacture by belated 2000.  The HPCC style as well uses product arrays of equipment operating the Linux Operating System. Custom configuration code and Middleware parts remained elaborated and layered on the center Linux Operating System to supply the implementation ecosystem and dispersed filesystem aid needed for data-intensive data processing. LexisNexis as well executed a spic-and-span high-level lingo for data-intensive data processing. The ECL (data-centric program design language)|ECL program design lingo is a high-level, declarative, data-centric, Implicit parallelism|implicitly collateral lingo that permits the software coder to determine what the information handling effect ought to be and the dataflows and transformations that are required to attain the effec