With most Excel spreadsheets, you enter data manually into cells and then use formulas or other functions to analyze it or perform calculations. If you have a large data source, such as an Access ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
This section describes how to retrieve DBMS data by using the statements and components of the SQL Procedure Pass-Through Facility to access DBMS data. The Pass-Through Facility uses the SAS/ACCESS ...
Inside a relational database management system, the princi­pal persisted data structure is considered a logical relation. Operations performed against that data within the RDBMS result in a logical ...
When the interface view engine reads data from a CA-OpenIngres table or view, an SQL SELECT statement is issued to place a shared lock on the table. (A shared lock enables more than one user to access ...
The beauty and joy of a relational database is the concept of relational closure—everything is a table. Beyond the eponymous table, query results are also “tables.” Any query serves as a table to be ...