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grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
NULL NULL NULL NULL NULL NULL
1 1 a 1 1 a 1
2 2 b NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
NULL NULL NULL 4 7 D 7
grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
NULL NULL NULL 4 7 D 7
grp a c id a c d
1 1 a 1 1 a 1
2 2 b NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
NULL NULL NULL NULL NULL NULL
grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
1 1 a 1 1 a 1
2 2 b NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL
3 4 E NULL NULL NULL NULL
3 5 C NULL NULL NULL NULL
3 6 D NULL NULL NULL NULL
NULL NULL NULL NULL NULL NULL
grp a c id a c d
1 1 a 1 1 a 1
1 1 a 3 4 A 4
2 2 b 3 5 B 5
2 3 c 3 6 C 6
3 4 E NULL NULL NULL NULL
3 5 C 3 6 C 6
3 6 D 4 7 D 7
NULL NULL NULL NULL NULL NULL
grp a c id a c d
1 1 a 1 1 a 1
2 2 b NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL
3 4 E NULL NULL NULL NULL
3 5 C NULL NULL NULL NULL
3 6 D NULL NULL NULL NULL
NULL NULL NULL NULL NULL NULL
grp a c id a c d
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
2 2 b NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL
NULL NULL NULL NULL NULL NULL
Comment
Impossible WHERE noticed after reading const tables
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 7
t2 eq_ref PRIMARY PRIMARY 8 t1.a 1 where used
grp a c id a c d a
1 1 a 1 1 a 1 1
2 2 b NULL NULL NULL NULL NULL
2 3 c NULL NULL NULL NULL NULL
3 4 E 3 4 A 4 4
3 5 C 3 5 B 5 5
3 6 D 3 6 C 6 6
NULL NULL NULL NULL NULL NULL NULL
grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
1 1 a 1 1 a 1
3 4 E 3 4 A 4
3 5 C 3 5 B 5
3 6 D 3 6 C 6
grp a c id a c d
1 1 a 1 1 a 1
usr_id uniq_id increment usr2_id c_amount max
3 4 84676 NULL NULL NULL
usr_id uniq_id increment usr2_id c_amount max
3 4 84676 NULL NULL NULL
usr_id uniq_id increment usr2_id c_amount max
3 4 84676 NULL NULL NULL
usr_id uniq_id increment usr2_id c_amount max
3 4 84676 NULL NULL NULL
usr_id uniq_id increment usr2_id c_amount max
3 4 84676 NULL NULL NULL
fill desc_larga_cat cred_total Grup Places PlacesOcupades
10360 asdfggfg 6.0 0 55 0
10360 asdfggfg 6.0 12 333 0
10360 asdfggfg 6.0 33 8 0
10360 asdfggfg 6.0 45 10 0
10360 asdfggfg 6.0 55 2 0
10360 asdfggfg 6.0 7887 85 0
10360 asdfggfg 6.0 32767 7 0
10361 Components i Circuits Electronics I 6.0 30 2 0
10361 Components i Circuits Electronics I 6.0 40 3 0
10362 Laboratori d`Ordinadors 4.5 10 12 0
10362 Laboratori d`Ordinadors 4.5 11 111 0
fill idPla
10360 NULL
10361 NULL
10362 NULL
fill idPla
10360 1
10361 NULL
10362 NULL
name name id
Antonio Paz El Gato 1
Antonio Paz Perrito 2
Lilliana Angelovska NULL NULL
Thimble Smith Happy 3
name name id
Lilliana Angelovska NULL NULL
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 3
t2 ALL NULL NULL NULL NULL 3 where used; Not exists
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 3
t2 ALL NULL NULL NULL NULL 3 where used
count(*)
4
name name id
Antonio Paz El Gato 1
Antonio Paz Perrito 2
Lilliana Angelovska NULL NULL
Thimble Smith Happy 3
name name id
Lilliana Angelovska NULL NULL
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 3
t2 ALL NULL NULL NULL NULL 3 where used; Not exists
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 3
t2 ALL NULL NULL NULL NULL 3 where used
count(*)
4
name name id id
Antonio Paz El Gato 1 1
Antonio Paz Perrito 2 1
Lilliana Angelovska NULL NULL NULL
Thimble Smith Happy 3 3
name name id id
Antonio Paz El Gato 1 1
Antonio Paz Perrito 2 1
NULL Happy 3 1
NULL El Gato 1 2
NULL Perrito 2 2
NULL Happy 3 2
NULL El Gato 1 3
NULL Perrito 2 3
Thimble Smith Happy 3 3
name name id owner id
Antonio Paz El Gato 1 1 1
Antonio Paz Perrito 2 1 1
Lilliana Angelovska NULL NULL NULL 1
Thimble Smith NULL NULL NULL 1
Antonio Paz NULL NULL NULL 2
Lilliana Angelovska NULL NULL NULL 2
Thimble Smith NULL NULL NULL 2
Antonio Paz NULL NULL NULL 3
Lilliana Angelovska NULL NULL NULL 3
Thimble Smith Happy 3 3 3
id str
4 bar
3 foo
id str
1 NULL
2 NULL
n m o n m o
1 2 11 1 2 3
1 2 7 1 2 3
1 2 9 1 2 3
1 3 9 NULL NULL NULL
n m o n m o
1 2 7 1 2 3
1 2 9 1 2 3
1 3 9 NULL NULL NULL
1 2 11 1 2 3
id2
3
id2
3
color name
red apple
yellow banana
green lime
black grape
blue blueberry
count color
10 green
5 black
15 white
7 green
count color color name
10 green green lime
7 green green lime
5 black black grape
count name
10 lime
7 lime
5 grape
count name
10 lime
7 lime
5 grape
pcode count
kld2000 1
klw1000 0
klw1020 0
klw1500 0
klw2000 0
klw2001 0
klw2002 0
klw2500 0
kmw1000 0
kmw1500 0
kmw2000 0
kmw2001 0
kmw2100 0
kmw3000 0
kmw3200 0
kvw2000 26
kvw2001 0
kvw3000 36
kvw3001 0
kvw3002 0
kvw3500 26
kvw3501 0
kvw3502 0
kvw3800 0
kvw3801 0
kvw3802 0
kvw3900 0
kvw3901 0
kvw3902 0
kvw4000 0
kvw4001 0
kvw4002 0
kvw4200 0
kvw4500 0
kvw5000 0
kvw5001 0
kvw5500 0
kvw5510 0
kvw5600 0
kvw5601 0
kvw6000 2
pcode count
kld2000 1
klw1000 0
klw1020 0
klw1500 0
klw2000 0
klw2001 0
klw2002 0
klw2500 0
kmw1000 0
kmw1500 0
kmw2000 0
kmw2001 0
kmw2100 0
kmw3000 0
kmw3200 0
kvw2000 26
kvw2001 0
kvw3000 36
kvw3001 0
kvw3002 0
kvw3500 26
kvw3501 0
kvw3502 0
kvw3800 0
kvw3801 0
kvw3802 0
kvw3900 0
kvw3901 0
kvw3902 0
kvw4000 0
kvw4001 0
kvw4002 0
kvw4200 0
kvw4500 0
kvw5000 0
kvw5001 0
kvw5500 0
kvw5510 0
kvw5600 0
kvw5601 0
kvw6000 2
id pid rep_del id pid rep_del
1 NULL NULL 2 1 NULL
2 1 NULL NULL NULL NULL
id pid rep_del id pid rep_del
1 NULL NULL 2 1 NULL
2 1 NULL NULL NULL NULL
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 2
t2 index id id 8 NULL 1 where used; Using index; Not exists
id name id idx
2 no NULL NULL
bug_id reporter bug_id who
1 1 1 2
table type possible_keys key key_len ref rows Extra
t2 index NULL PRIMARY 4 NULL 3 Using index
t1 eq_ref PRIMARY PRIMARY 2 const 1 where used; Using index
fooID barID fooID
10 1 NULL
20 2 NULL
30 3 30
fooID barID fooID
10 1 NULL
20 2 NULL
30 3 30
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