| 1. | Important Column Attributes and Options | | |
| 2. | Drop a column | | |
| 3. | Chage column name | | |
| 4. | Change column definition | | |
| 5. | Change column data length | | |
| 6. | Change column data type | | |
| 7. | change column type and sequence in table | | |
| 8. | Modify a column | | |
| 9. | Adding a Column | | |
| 10. | Changing a Column Definition | | |
| 11. | Renaming a Table | | |
| 12. | Dropping a Column | | |
| 13. | Syntax for Adding a Column | | |
| 14. | Returns detailed information about all columns of the table tablename | | |
| 15. | Exchanging Rows and Columns | | |
| 16. | To copy only some of the columns, name the ones you want in the SELECT part of the statement. | | |
| 17. | To create columns in a different order than that in which they appear in the source table | | |
| 18. | Get information only for the co_2 column, you can't use this query: | | |
| 19. | The -e option specifies the query to execute, and -N tells MySQL not to write the row of column names that normally precedes query output. | | |
| 20. | Copying Only Selected Columns from a Table | | |
| 21. | Specifying Which Columns to Display | | |
| 22. | Giving Names to Output Columns | | |
| 23. | Aliases can be applied to any result set column, not just those that come from tables | | |
| 24. | Combining Columns to Construct Composite Values | | |
| 25. | Put the comparison expression in the output column list, perhaps including the values that you're comparing | | |
| 26. | Refer to the additional output column by position | | |
| 27. | Take everything but the rightmost two columns | | |
| 28. | Dropping, Adding, or Repositioning a Column | | |
| 29. | To indicate a column at a specific position within the table, either use FIRST to make it the first column, or | | |
| 30. | Changing a Column Definition or Name | | |
| 31. | After the CHANGE keyword, you name the column you want to change, then specify the new definition, which inclu | | |
| 32. | Changing a Column's Default Value | | |
| 33. | Information only about a single column, use a LIKE clause that matches the column name | | |
| 34. | -d option specifies a field delimiter of : and the -f option indicates that you want to cut column one and all | | |
| 35. | Add a sequence column named id to the table | | |
| 36. | Give each table a short alias and refer to table columns using the aliases: | | |
| 37. | To exclude them, provide a column output list that names specifically only those columns | | |
| 38. | To produce additional columns showing the total and average values of the books for each author in the author | | |
| 39. | CREATE TABLE statement provides an example of a TEXT column named DescriptionDoc | | |
| 40. | Create the Catalog table and includes two NOT NULL columns | | |
| 41. | Reference a column | | |
| 42. | Add and drop columns | | |
| 43. | Giving Columns a New Heading with AS | | |
| 44. | Alias column with spaces | | |
| 45. | Insert data without column names | | |
| 46. | Column definition with modifiers | | |
| 47. | Sort by column name | | |
| 48. | Sort more than one columns | | |
| 49. | Get the descriptive data of the columns belonging to the PLAYERS table | | |
| 50. | A table contains only one column. | | |
| 51. | A column definition may include options to define the column data more precisely. | | |
| 52. | More complex tables have multiple columns | | |
| 53. | Adding and Dropping Columns | | |
| 54. | Modifying Existing Columns | | |
| 55. | Change the LastName column from CHAR(30) to CHAR(40) without renaming the column | | |
| 56. | Column Types | | |
| 57. | NULL Values and Column Definitions | | |
| 58. | Use single quote with char type column | | |
| 59. | Column alias with underscore | | |
| 60. | Using Case clause to show meaningful value for column | | |
| 61. | Select all columns from a table inside another database | | |
| 62. | Concatenate columns | | |
| 63. | Using qulified column name | | |
| 64. | Compare two columns together | | |
| 65. | Compare two columns and yield two values | | |
| 66. | Column sequence in insert statemenet | | |
| 67. | Change column type and settings during table copying | | |
| 68. | Enlarge column during table copying | | |
| 69. | Set column to use default value | | |
| 70. | Get default value from a column | | |
| 71. | Table column with comments | | |
| 72. | Check table column settings | | |
| 73. | Unique modifier for column definition | | |
| 74. | Indicate unique after column definition | | |
| 75. | Check column value | | |
| 76. | Set type column | | |
| 77. | To disallow NULL values in any of the columns, add NOT NULL to the definition of each one. | | |
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