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You can enter an SQL query in the SQL Editor window if you already know the libref or creator, table, and column names that you want to use. The SQL Editor window is a complete editor with the ...
How to Use SQL Statements in MS Excel. With most Excel spreadsheets, you enter data manually into cells and then use formulas or other functions to analyze it or perform calculations.
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 ...
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.
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 ...
Oracle9i offers some great tools to make it easy to view the execution plan and trace information for a SQL statement. Prior to Oracle8i, you had to create a plan table and execute special syntax ...
Everyone wants faster database queries, and both SQL developers and DBAs can turn to many time-tested methods to achieve that goal. Unfortunately, no single method is foolproof or ironclad.
Some databases, like SQL Server, send incoming queries through a compilation process. The database caches each query, and reuses the compiled version when a request for the identical query arrives. By ...