The following are the types of Tables that can be created in SQL.

 

1. USER TABLES (REGULAR TABLES)

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Figure 6.1. Table ProductLists has been successfully created

The CREATE TABLE statement in SQL is used to create a new user defined table table.

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2. TEMPORARY TABLES

Temporary tables can be created to save the execution time. They are however only for a session that created them. After execution of another session they automatically get destroyed. They are identified by prefix #. We can create many temp tables in a single stored procedure.

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Figure6.2 Table #ProductList has been successfully created

 

Note: A Database consists of a collection of huge volumes of data, so make sure that you have proper Admin access before dropping a Database. A dropped Database cannot be recreated and it may lead to loss of all the stored data.

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3.GLOBAL TEMPORARY TABLES 

Global temporary tables are available to all sessions and all users. They are however terminated automatically when the last session using the temporary table has completed. They are identified with the prefix ##.

Figure6.2 Table ##GlobalTable has been successfully created

Want More SQL Deep Dives

  1. SQL Introduction

  2. Database Overview

  3. Creating a Database

  4. Dropping a Database

  5. Table Fundamentals

  6. Table Types

  7. Datatypes in SQL

  8. DDL, DML, TCL & DCL

  9. Null & Not Null Values

  10. Creating Tables

  11. SQL - Constraints

  12. SQL - Index 

  13. SQL Inserting Data

  14. SQL Identity Columns

  15. Selecting Data

  16. Using Distinct

  17. SQL in NOT IN

  18. Using Top Clause

  19. Where Clause

  20. Group By

  21. Order By

  22. Having

  23. Exists

  24. Offset

  25. SQL - Operators

  26. Between

  27. Update

  28. Delete

  29. SQL - Aggregate Functions

  30. SQL - Introductions to Joins

  31. Table Alias

  32. SQL - Inner Join

  33. SQL - Left Join

  34. SQL - Right Join

  35. Full Join

  36. Self Join

  37. SQL Union

  38. Pivot

  39. Alter Command

  40. Limit Clause

  41. Truncate

  42. Drop

  43. Table Backup

  44. SQL - Normalization

  45. Subquery

  46. SQL - Views & Materialized Views

  47. Case Statement

  48. SQL Transactions

  49. SQL - Scaler Functions

  50. Working with Dates

  51. Grant revoke

  52. SQL - Performance Tunning

  53. Stored Procedure Basics

  54. Stuff function

  55. Keyword

  56. SQL - Miscellaneous

©2020 by Pavan Lalwani.