Sql
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SQL is a structured query language used to access and manipulate relational data. The document outlines key SQL concepts like DML for data manipulation, DDL for data definition, reading from databases using SELECT statements and functions, and writing to databases using INSERT, SELECT INTO, and export/import. It also lists some system stored procedures, tools for monitoring performance and optimizing queries, and best practices for database design and maintenance.
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Sql
- 1. SQL Next Jump
- 2. agenda picture code reading from database writing to database info …
- 4. intro structured query language set based for relational data access DML – data manipulation select, insert, update, delete DDL – data definition create, alter, drop
- 5. reading from database case when … then … else … end cast and convert inline-views and cte outer … join … apply intersect, except rank, dense, rownumber, ntile try … catch
- 6. writing to database select … into insert … select import/export excel to make sql textpad macros
- 7. info sp_help sys.objects sp_who, sp_who2 sp_rename, sp_executesql execution plans profiler toad ?
- 8. do’s and don’ts naming conventions primary & foreign keys audit columns index normalization triggers cursors update or delete without a where
- 10. Integration Services Reporting Services Analysis Services