The basics of the SQL
statements in Oracle
This white paper will come in handy for Oracle developers who want to improve their skills in writing some basic queries. The document also delivers some tips and tricks, which can be used for executing these statements. It consists of five sections that come with handy practical examples:
- The SQL REPLACE section explores text replacement and removal, including case-sensitive and nested replacement as well as subsequent text updates.
- The UPDATE in PL/SQL section gives information on how to preview records before running updates, perform trial runs with temporary tables, work with OUTPUT and EXCEPTION, and use transaction control.
- The SQL INSERT INTO SELECT section shows how to use the DISTINCT, WHERE NOT IN, WHERE NOT EXISTS, and MERGE clauses in INSERT INTO SELECT.
- The SQL DELETE section provides the most useful Oracle syntax tips for the DELETE statements.
- Finally, the Oracle Index Examples section covers index examples to speed up PL/SQL queries.
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