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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
AND INSTR(table_comment,'number_of_replicas') = 0,
LENGTH(table_comment),
INSTR(table_comment,'InnoDB free')
+ INSTR(table_comment,'number_of_replicas') - 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 NULL
TABLE_SCHEMA test1
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE InnoDB
VERSION 10
ROW_FORMAT Compact
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 latin1_swedish_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG NULL
TABLE_SCHEMA test1
TABLE_NAME t2
TABLE_TYPE BASE TABLE
ENGINE InnoDB
VERSION 10
ROW_FORMAT Compact
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 latin1_swedish_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG NULL
TABLE_SCHEMA test2
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE InnoDB
VERSION 10
ROW_FORMAT Compact
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 latin1_swedish_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
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;
# Establish connection testuser1 (user=testuser1)
SELECT *,
LEFT( table_comment,
IF(INSTR(table_comment,'InnoDB free') = 0
AND INSTR(table_comment,'number_of_replicas') = 0,
LENGTH(table_comment),
INSTR(table_comment,'InnoDB free')
+ INSTR(table_comment,'number_of_replicas') - 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 NULL
TABLE_SCHEMA test1
TABLE_NAME t1
TABLE_TYPE BASE TABLE
ENGINE InnoDB
VERSION 10
ROW_FORMAT Compact
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 latin1_swedish_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
user_comment
Separator -----------------------------------------------------
TABLE_CATALOG NULL
TABLE_SCHEMA test1
TABLE_NAME t2
TABLE_TYPE BASE TABLE
ENGINE InnoDB
VERSION 10
ROW_FORMAT Compact
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 latin1_swedish_ci
CHECKSUM NULL
CREATE_OPTIONS #CO#
TABLE_COMMENT #TC#
user_comment
Separator -----------------------------------------------------
SHOW TABLES FROM test1;
Tables_in_test1
t1
t2
SHOW TABLES FROM test2;
ERROR 42000: Access denied for user 'testuser1'@'localhost' to database 'test2'
# Switch to connection default and close connection testuser1
DROP USER testuser1@localhost;
DROP DATABASE test1;
DROP DATABASE test2;
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