The ibmi_sql_query module takes the SQL DQL(Data Query Language) statement as argument. The expected row count. If it is equal or greater than 0, check if the actual row count returned from the query ...

Identifies the types of each statement in a SQL query (also provide the start, end and the query text). This uses AST and parser techniques to identify the SQL query type. Although it will not ...

During optimization, the cardinality estimation process is responsible for estimating the number of rows processed at each step in an execution plan. Cardinality estimation uses a combination of ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

It is not uncommon that a single SQL statement such as a SELECT statement includes sub-SQL SELECT statements, or sub-queries, that generate a sub-result set within the top-level statement. If these ...

Part of the SQL Server 2022 blog series. Query Store is one of the most powerful database-scoped features in SQL Server for troubleshooting performance and improving the stability of your database ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...