Learn what the SQL MERGE statement is, how it works, and how to use it to synchronize two tables by inserting, updating, and deleting data.

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SQL procedures, as database objects stored in a database engine like MySQL, PostgreSQL, BigQuery, etc., are named blocks of SQL queries or code that can be called and executed multiple times from ...

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 ...

The CONNECT statement establishes a connection with the DBMS. You establish a connection to send DBMS-specific SQL statements to the DBMS or to retrieve DBMS data. The connection remains in effect ...

I need to search about twenty columns for given a string with wildcards. The query essentially looks like this: SELECT * FROM `the_table` WHERE ...

Security researchers have developed a generic technique for SQL injection that bypasses multiple web application firewalls (WAFs). At the core of the issue was WAF vendors failing to add support ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and ...