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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

mdl_grade_grades_history

# Name Type Collation Attributes Null Default Comments Extra Action
1 bigint(10) No None AUTO_INCREMENT Change Change Drop Drop
2 bigint(10) No 0 Change Change Drop Drop
3 bigint(10) No None Change Change Drop Drop
4 varchar(255) utf8mb4_unicode_ci Yes NULL Change Change Drop Drop
5 bigint(10) Yes NULL Change Change Drop Drop
6 bigint(10) Yes NULL Change Change Drop Drop
7 bigint(10) No None Change Change Drop Drop
8 bigint(10) No None Change Change Drop Drop
9 decimal(10,5) Yes NULL Change Change Drop Drop
10 decimal(10,5) No 100.00000 Change Change Drop Drop
11 decimal(10,5) No 0.00000 Change Change Drop Drop
12 bigint(10) Yes NULL Change Change Drop Drop
13 bigint(10) Yes NULL Change Change Drop Drop
14 decimal(10,5) Yes NULL Change Change Drop Drop
15 bigint(10) No 0 Change Change Drop Drop
16 bigint(10) No 0 Change Change Drop Drop
17 bigint(10) No 0 Change Change Drop Drop
18 bigint(10) No 0 Change Change Drop Drop
19 bigint(10) No 0 Change Change Drop Drop
20 bigint(10) No 0 Change Change Drop Drop
21 longtext utf8mb4_unicode_ci Yes NULL Change Change Drop Drop
22 bigint(10) No 0 Change Change Drop Drop
23 longtext utf8mb4_unicode_ci Yes NULL Change Change Drop Drop
24 bigint(10) No 0 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 8 A No
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_act_ix BTREE No No action 4 A No
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_tim_ix BTREE No No timemodified 4 A Yes
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_useitetim_ix BTREE No No userid 4 A No
itemid 8 A No
timemodified 8 A Yes
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_old_ix BTREE No No oldid 8 A No
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_ite_ix BTREE No No itemid 8 A No
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_use_ix BTREE No No userid 4 A No
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_raw_ix BTREE No No rawscaleid 2 A Yes
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_use2_ix BTREE No No usermodified 8 A Yes
Edit Edit Rename Rename Drop Drop mdl_gradgradhist_log_ix BTREE No No loggeduser 4 A Yes
Create an index on columns
Partitions Documentation
Information

Table comments: History table

Space usage
Data 8.0 KiB
Index 72.0 KiB
Overhead 0 B
Effective 80.0 KiB
Total 80.0 KiB
Optimize table Optimize table
Row statistics
Format Compressed
Options row_format=COMPRESSED
Collation utf8mb4_unicode_ci
Next autoindex 11
Creation Apr 10, 2026 at 03:41 PM
Last update Apr 17, 2026 at 06:25 AM
Last check Apr 17, 2026 at 06:25 AM