1932
1933
show tables from test like "s%";
1933
1934
Tables_in_test (s%)
1934
1935
show tables from test like "t?";
1935
1936
Tables_in_test (t?)
1936
show full columns from t2;
1937
Field Type Collation Null Key Default Extra Privileges Comment
1938
auto int NULL NO PRI NULL auto_increment #
1939
fld1 int NULL NO UNI 0 #
1940
companynr int NULL NO 0 #
1941
fld3 varchar(30) utf8_general_ci NO MUL #
1942
fld4 varchar(35) utf8_general_ci NO #
1943
fld5 varchar(35) utf8_general_ci NO #
1944
fld6 varchar(4) utf8_general_ci NO #
1945
show full columns from t2 from test like 'f%';
1946
Field Type Collation Null Key Default Extra Privileges Comment
1947
fld1 int NULL NO UNI 0 #
1948
fld3 varchar(30) utf8_general_ci NO MUL #
1949
fld4 varchar(35) utf8_general_ci NO #
1950
fld5 varchar(35) utf8_general_ci NO #
1951
fld6 varchar(4) utf8_general_ci NO #
1952
show full columns from t2 from test like 's%';
1953
Field Type Collation Null Key Default Extra Privileges Comment
1937
show columns from t2;
1938
Field Type Null Default Default_is_NULL On_Update
1939
auto INTEGER FALSE FALSE
1940
fld1 INTEGER FALSE 0 FALSE
1941
companynr INTEGER FALSE 0 FALSE
1942
fld3 VARCHAR FALSE 0 FALSE
1943
fld4 VARCHAR FALSE 0 FALSE
1944
fld5 VARCHAR FALSE 0 FALSE
1945
fld6 VARCHAR FALSE 0 FALSE
1946
show columns from t2 from test like 'f%';
1947
Field Type Null Default Default_is_NULL On_Update
1948
auto INTEGER FALSE FALSE
1949
fld1 INTEGER FALSE 0 FALSE
1950
companynr INTEGER FALSE 0 FALSE
1951
fld3 VARCHAR FALSE 0 FALSE
1952
fld4 VARCHAR FALSE 0 FALSE
1953
fld5 VARCHAR FALSE 0 FALSE
1954
fld6 VARCHAR FALSE 0 FALSE
1955
show columns from t2 from test like 's%';
1956
Field Type Null Default Default_is_NULL On_Update
1957
auto INTEGER FALSE FALSE
1958
fld1 INTEGER FALSE 0 FALSE
1959
companynr INTEGER FALSE 0 FALSE
1960
fld3 VARCHAR FALSE 0 FALSE
1961
fld4 VARCHAR FALSE 0 FALSE
1962
fld5 VARCHAR FALSE 0 FALSE
1963
fld6 VARCHAR FALSE 0 FALSE
1954
1964
drop table t4, t3, t2, t1;
1955
1965
CREATE TABLE t1 (
1956
1966
id bigint NOT NULL auto_increment,
2448
2458
create table t11 like t1;
2449
2459
insert into t1 values(1,""),(2,"");
2450
2460
show table status like 't1%';
2451
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment Plugin_name
2452
t1 InnoDB X Compact 2 8192 X X X X X X X X utf8_general_ci NULL NULL
2453
t11 InnoDB X Compact 0 0 X X X X X X X X utf8_general_ci NULL NULL
2461
Session Schema Name Type Engine Version Rows Avg_row_length Table_size Auto_increment
2462
# test t1 STANDARD InnoDB # # # # #
2454
2463
select 123 as a from t1 where f1 is null;
2456
2465
drop table t1,t11;