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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
|
drop table if exists t1,t2,t3;
create table t1 (a int not null);
insert into t1 values (1);
insert into t1 values (a+2);
insert into t1 values (a+3);
insert into t1 values (4),(a+5);
select * from t1;
a
1
2
3
4
5
drop table t1;
create table t1 (id int not null auto_increment primary key, username varchar(32) not null, unique (username));
insert into t1 values (0,"mysql");
insert into t1 values (0,"mysql ab");
insert into t1 values (0,"mysql a");
insert into t1 values (0,"r1manic");
insert into t1 values (0,"r1man");
drop table t1;
create table t1 (a int not null auto_increment, primary key (a), t timestamp, c char(10) default "hello", i int);
insert into t1 values (default,default,default,default), (default,default,default,default), (4,0,"a",5),(default,default,default,default);
select a,t>0,c,i from t1;
a t>0 c i
1 1 hello NULL
2 1 hello NULL
4 0 a 5
5 1 hello NULL
truncate table t1;
insert into t1 set a=default,t=default,c=default;
insert into t1 set a=default,t=default,c=default,i=default;
insert into t1 set a=4,t=0,c="a",i=5;
insert into t1 set a=5,t=0,c="a",i=null;
insert into t1 set a=default,t=default,c=default,i=default;
select a,t>0,c,i from t1;
a t>0 c i
1 1 hello NULL
2 1 hello NULL
4 0 a 5
5 0 a NULL
6 1 hello NULL
drop table t1;
create table t1 (sid char(20), id int(2) NOT NULL auto_increment, key(sid, id));
insert into t1 values ('skr',NULL),('skr',NULL),('test',NULL);
select * from t1;
sid id
skr 1
skr 2
test 1
insert into t1 values ('rts',NULL),('rts',NULL),('test',NULL);
select * from t1;
sid id
rts 1
rts 2
skr 1
skr 2
test 1
test 2
drop table t1;
create table t1 (id int NOT NULL DEFAULT 8);
insert into t1 values(NULL);
ERROR 23000: Column 'id' cannot be null
insert into t1 values (1), (NULL), (2);
Warnings:
Warning 1263 Column was set to data type implicit default; NULL supplied for NOT NULL column 'id' at row 2
select * from t1;
id
1
0
2
drop table t1;
create table t1 (email varchar(50));
insert into t1 values ('sasha@mysql.com'),('monty@mysql.com'),('foo@hotmail.com'),('foo@aol.com'),('bar@aol.com');
create table t2(id int not null auto_increment primary key, t2 varchar(50), unique(t2));
insert delayed into t2 (t2) select distinct substring(email, locate('@', email)+1) from t1;
select * from t2;
id t2
1 mysql.com
2 hotmail.com
3 aol.com
drop table t1,t2;
drop database if exists mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (c int);
insert into mysqltest.t1 set mysqltest.t1.c = '1';
drop database mysqltest;
use test;
create table t1(number int auto_increment primary key, original_value varchar(50), f_double double, f_float float, f_double_7_2 double(7,2), f_float_4_3 float (4,3), f_double_u double unsigned, f_float_u float unsigned, f_double_15_1_u double(15,1) unsigned, f_float_3_1_u float (3,1) unsigned);
set @value= "aa";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double' at row 1
Warning 1265 Data truncated for column 'f_float' at row 1
Warning 1265 Data truncated for column 'f_double_7_2' at row 1
Warning 1265 Data truncated for column 'f_float_4_3' at row 1
Warning 1265 Data truncated for column 'f_double_u' at row 1
Warning 1265 Data truncated for column 'f_float_u' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 1
original_value aa
f_double 0
f_float 0
f_double_7_2 0.00
f_float_4_3 0.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= "1aa";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double' at row 1
Warning 1265 Data truncated for column 'f_float' at row 1
Warning 1265 Data truncated for column 'f_double_7_2' at row 1
Warning 1265 Data truncated for column 'f_float_4_3' at row 1
Warning 1265 Data truncated for column 'f_double_u' at row 1
Warning 1265 Data truncated for column 'f_float_u' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 2
original_value 1aa
f_double 1
f_float 1
f_double_7_2 1.00
f_float_4_3 1.000
f_double_u 1
f_float_u 1
f_double_15_1_u 1.0
f_float_3_1_u 1.0
set @value= "aa1";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double' at row 1
Warning 1265 Data truncated for column 'f_float' at row 1
Warning 1265 Data truncated for column 'f_double_7_2' at row 1
Warning 1265 Data truncated for column 'f_float_4_3' at row 1
Warning 1265 Data truncated for column 'f_double_u' at row 1
Warning 1265 Data truncated for column 'f_float_u' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 3
original_value aa1
f_double 0
f_float 0
f_double_7_2 0.00
f_float_4_3 0.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= "1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Out of range value adjusted for column 'f_double' at row 1
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 4
original_value 1e+1111111111a
f_double 1.79769313486232e+308
f_float 3.40282e+38
f_double_7_2 99999.99
f_float_4_3 9.999
f_double_u 1.79769313486232e+308
f_float_u 3.40282e+38
f_double_15_1_u 99999999999999.9
f_float_3_1_u 99.9
set @value= "-1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Out of range value adjusted for column 'f_double' at row 1
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 5
original_value -1e+1111111111a
f_double -1.79769313486232e+308
f_float -3.40282e+38
f_double_7_2 -99999.99
f_float_4_3 -9.999
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= 1e+1111111111;
ERROR 22007: Illegal double '1e+1111111111' value found during parsing
set @value= -1e+1111111111;
ERROR 22007: Illegal double '1e+1111111111' value found during parsing
set @value= 1e+111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 6
original_value 1e+111
f_double 1e+111
f_float 3.40282e+38
f_double_7_2 99999.99
f_float_4_3 9.999
f_double_u 1e+111
f_float_u 3.40282e+38
f_double_15_1_u 99999999999999.9
f_float_3_1_u 99.9
set @value= -1e+111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Out of range value adjusted for column 'f_float' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_7_2' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_4_3' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 7
original_value -1e+111
f_double -1e+111
f_float -3.40282e+38
f_double_7_2 -99999.99
f_float_4_3 -9.999
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= 1;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
select * from t1 where number =last_insert_id();
number 8
original_value 1
f_double 1
f_float 1
f_double_7_2 1.00
f_float_4_3 1.000
f_double_u 1
f_float_u 1
f_double_15_1_u 1.0
f_float_3_1_u 1.0
set @value= -1;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Out of range value adjusted for column 'f_double_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_double_15_1_u' at row 1
Warning 1264 Out of range value adjusted for column 'f_float_3_1_u' at row 1
select * from t1 where number =last_insert_id();
number 9
original_value -1
f_double -1
f_float -1
f_double_7_2 -1.00
f_float_4_3 -1.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
drop table t1;
create table t1(id1 int not null auto_increment primary key, t char(12));
create table t2(id2 int not null, t char(12));
create table t3(id3 int not null, t char(12), index(id3));
select count(*) from t2;
count(*)
500
insert into t2 select t1.* from t1, t2 t, t3 where t1.id1 = t.id2 and t.id2 = t3.id3;
select count(*) from t2;
count(*)
25500
drop table t1,t2,t3;
create table t1 (id int primary key, data int);
insert into t1 values (1, 1), (2, 2), (3, 3);
select row_count();
row_count()
3
insert ignore into t1 values (1, 1);
select row_count();
row_count()
0
replace into t1 values (1, 11);
select row_count();
row_count()
2
replace into t1 values (4, 4);
select row_count();
row_count()
1
insert into t1 values (2, 2) on duplicate key update data= data + 10;
select row_count();
row_count()
2
insert into t1 values (5, 5) on duplicate key update data= data + 10;
select row_count();
row_count()
1
drop table t1;
|
