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Table structure
Settings for the table structure (list of columns).
Table structure
Documentation Whether the table structure actions should be hidden. Restore default value
Documentation Whether column comments should be shown in table structure view Restore default value
Default transformations
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value
Documentation Values for options list for default transformations. These will be overwritten if transformation is filled in at table structure page. Restore default value

timetable_substitutions

# Name Type Collation Attributes Null Default Comments Extra Action
1 int(11) No None AUTO_INCREMENT Change Change Drop Drop
2 int(11) No 0 Change Change Drop Drop
3 int(11) No 0 Change Change Drop Drop
4 int(11) No 0 Change Change Drop Drop
5 date No None Change Change Drop Drop
6 enum('mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'su... utf8mb4_unicode_ci No mon Change Change Drop Drop
7 int(11) No 0 Change Change Drop Drop
8 int(11) No 0 Change Change Drop Drop
9 int(11) No 0 Change Change Drop Drop
10 int(11) No 0 Change Change Drop Drop
11 int(11) No 0 Change Change Drop Drop
12 int(11) No 0 Change Change Drop Drop
13 int(11) No 0 Change Change Drop Drop
14 int(11) No 0 Change Change Drop Drop
15 int(11) No 0 Change Change Drop Drop
16 int(11) No 0 Change Change Drop Drop
17 enum('ABSENT', 'LEAVE', 'MEETING', 'TRAINING', 'EM... utf8mb4_unicode_ci No ABSENT Change Change Drop Drop
18 text utf8mb4_unicode_ci Yes NULL Change Change Drop Drop
19 enum('DRAFT', 'ASSIGNED', 'NOTIFIED', 'COMPLETED',... utf8mb4_unicode_ci No DRAFT Change Change Drop Drop
20 tinyint(1) No 0 Change Change Drop Drop
21 datetime Yes NULL Change Change Drop Drop
22 datetime Yes NULL Change Change Drop Drop
23 datetime Yes NULL Change Change Drop Drop
24 tinyint(1) No 0 Change Change Drop Drop
25 int(11) No 0 Change Change Drop Drop
26 int(11) No 0 Change Change Drop Drop
27 datetime No current_timestamp() Change Change Drop Drop
28 datetime Yes NULL ON UPDATE CURRENT_TIMESTAMP() Change Change Drop Drop
With selected: With selected:

Add column  Add column(s)  
Indexes Documentation
Action Keyname Type Unique Packed Column Cardinality Collation Null Comment
Edit Edit Rename Rename Drop Drop PRIMARY BTREE Yes No id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_company_branch BTREE No No company_id 0 A No
branch_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_academic_year BTREE No No academic_year_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_date BTREE No No substitution_date 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_absent_teacher BTREE No No absent_teacher_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_substitute_teacher BTREE No No substitute_teacher_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_original_entry BTREE No No original_entry_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_class_section BTREE No No class_id 0 A No
section_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_period BTREE No No period_id 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_status BTREE No No status 0 A No
Edit Edit Rename Rename Drop Drop idx_tt_sub_delete_status BTREE No No delete_status 0 A No
Create an index on columns
Partitions Documentation
Information
Space usage
Data 16.0 KiB
Index 160.0 KiB
Overhead 0 B
Effective 176.0 KiB
Total 176.0 KiB
Optimize table Optimize table
Row statistics
Format dynamic
Collation utf8mb4_unicode_ci
Next autoindex 1
Creation Sep 07, 2026 at 09:27 AM
Last update Sep 29, 2026 at 06:10 PM
Last check Sep 29, 2026 at 06:10 PM