intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database table and index structures. Maintain ...

Both of these have roots in early CODASYL specifications. The third sub-language in SQL declares queries, through the SELECT statement and relational joins. The SELECT statement tells the query ...

Can a simple dash character introduce a security risk? Discover how SQL line comments can open the door to unexpected injection vulnerabilities in several PostgreSQL client libraries!