1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
SET @@session.sql_mode = 'NO_ENGINE_SUBSTITUTION';
DROP DATABASE IF EXISTS test1;
DROP DATABASE IF EXISTS test2;
CREATE DATABASE test1;
CREATE DATABASE test2;
CREATE TABLE test1.t1 (f1 VARCHAR(20)) ENGINE = <engine_to_be_used>;
CREATE TABLE test1.t2 (f1 VARCHAR(20)) ENGINE = <engine_to_be_used>;
CREATE TABLE test2.t1 (f1 VARCHAR(20)) ENGINE = <engine_to_be_used>;
SELECT *,
LEFT( table_comment,
IF(INSTR(table_comment,'InnoDB free') = 0,
LENGTH(table_comment),
INSTR(table_comment,'InnoDB free') - 1))
AS "user_comment",
'-----------------------------------------------------' AS "Separator"
FROM information_schema.tables
WHERE table_schema LIKE 'test%' AND table_type = 'BASE TABLE'
ORDER BY table_schema,table_name;
TABLE_CATALOG def
TABLE_SCHEMA test1
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA test1
TABLE_NAME t2
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA test2
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
SHOW TABLES FROM test1;
Tables_in_test1
t1
t2
SHOW TABLES FROM test2;
Tables_in_test2
t1
DROP USER testuser1@localhost;
CREATE USER testuser1@localhost;
GRANT SELECT ON test1.* TO testuser1@localhost;
connect testuser1,localhost,testuser1,,test1;
SELECT *,
LEFT( table_comment,
IF(INSTR(table_comment,'InnoDB free') = 0,
LENGTH(table_comment),
INSTR(table_comment,'InnoDB free') - 1))
AS "user_comment",
'-----------------------------------------------------' AS "Separator"
FROM information_schema.tables
WHERE table_schema LIKE 'test%' AND table_type = 'BASE TABLE'
ORDER BY table_schema,table_name;
TABLE_CATALOG def
TABLE_SCHEMA test1
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA test1
TABLE_NAME t2
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG def
TABLE_SCHEMA test2
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE MYISAM_OR_MARIA
VERSION 10
ROW_FORMAT DYNAMIC_OR_PAGE
TABLE_ROWS #TBLR#
AVG_ROW_LENGTH #ARL#
DATA_LENGTH #DL#
MAX_DATA_LENGTH #MDL#
INDEX_LENGTH #IL#
DATA_FREE #DF#
AUTO_INCREMENT NULL
CREATE_TIME #CRT#
UPDATE_TIME #UT#
CHECK_TIME #CT#
TABLE_COLLATION utf8mb4_uca1400_ai_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
MAX_INDEX_LENGTH #MIL#
TEMPORARY N
user_comment
Separator -----------------------------------------------------
SHOW TABLES FROM test1;
Tables_in_test1
t1
t2
SHOW TABLES FROM test2;
Tables_in_test2
t1
connection default;
disconnect testuser1;
DROP USER testuser1@localhost;
DROP DATABASE test1;
DROP DATABASE test2;
|
