MariaDB – Select Query In this chapter, we will learn how to select data from a table. SELECT statements retrieve selected rows. They can include UNION statements, an ordering clause, a LIMIT clause, a WHERE clause, a GROUP BY…HAVING clause, and subqueries. Review the following general syntax − SELECT field, field2,… FROM table_name, table_name2,… WHERE… […]
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MariaDB – Like Clause The WHERE clause provides a way to retrieve data when an operation uses an exact match. In situations requiring multiple results with shared characteristics, the LIKE clause accommodates broad pattern matching. A LIKE clause tests for a pattern match, returning a true or false. The patterns used for comparison accept the […]
MariaDB – Join In previous discussions and examples, we examined retrieving from a single table, or retrieving multiple values from multiple sources. Most real-world data operations are much more complex, requiring aggregation, comparison, and retrieval from multiple tables. JOINs allow merging of two or more tables into a single object. They are employed through SELECT, […]