To write a basic SQL query to retrieve data, you can use the SELECT statement. ... It acts as a filter, and you can use a range of operators to specify conditions.

REM SQL from the KISS (Keep It Simply SQL) Analytic video series by Developer Advocate Connor McDonald. This script looks at the classical problem of identifying groups of data within a set of rows.

SQL has dominated data querying for decades. Newer query languages offer more elegance, simplicity, and flexibility for modern use cases. For the last three decades, databases and Structured Query ...

Spark SQL: Apache’s Spark project is for real-time, in-memory, parallelized processing of Hadoop data.Spark SQL builds on top of it to allow SQL queries to be written against data. A better way ...

B-tree Indexes: This is the default indexing method for PostgreSQL, which is used to perform equality and range queries. GIN (Generalized Inverted Index): It is used for full-text search fields or ...

Ok SQL gurus, I've got what must be a common question, but I haven't got a clue on how to do it.I've got a table like: tblFixes +EventDate - Date +FixPerformed - (just assume Bool for this example ...

My post earlier this year on enabling query folding when using SQL queries as a data source in Power Query provoked a lot of interest. This post adds one more useful detail: how to preserve the ...

To write a basic SQL query to retrieve data from a database, you typically use the SELECT statement. SELECT column1, column2 FROM table_name; SELECT: This keyword is used to specify the columns ...