1SET @start_value = @@global.max_connections;
2SELECT @start_value;
3@start_value
4151
5'#--------------------FN_DYNVARS_074_01------------------------#'
6SET @@global.max_connections = 5000;
7SET @@global.max_connections = DEFAULT;
8SELECT @@global.max_connections;
9@@global.max_connections
10151
11'#---------------------FN_DYNVARS_074_02-------------------------#'
12SET @@global.max_connections = @start_value;
13SELECT @@global.max_connections = 151;
14@@global.max_connections = 151
151
16'#--------------------FN_DYNVARS_074_03------------------------#'
17SET @@global.max_connections = 100000;
18SELECT @@global.max_connections;
19@@global.max_connections
20100000
21SET @@global.max_connections = 99999;
22SELECT @@global.max_connections;
23@@global.max_connections
2499999
25SET @@global.max_connections = 65536;
26SELECT @@global.max_connections;
27@@global.max_connections
2865536
29SET @@global.max_connections = 1;
30SELECT @@global.max_connections;
31@@global.max_connections
321
33SET @@global.max_connections = 2;
34SELECT @@global.max_connections;
35@@global.max_connections
362
37'#--------------------FN_DYNVARS_074_04-------------------------#'
38SET @@global.max_connections = -1;
39Warnings:
40Warning	1292	Truncated incorrect max_connections value: '-1'
41SELECT @@global.max_connections;
42@@global.max_connections
431
44SET @@global.max_connections = 100000000000;
45Warnings:
46Warning	1292	Truncated incorrect max_connections value: '100000000000'
47SELECT @@global.max_connections;
48@@global.max_connections
49100000
50SET @@global.max_connections = 10000.01;
51ERROR 42000: Incorrect argument type to variable 'max_connections'
52SELECT @@global.max_connections;
53@@global.max_connections
54100000
55SET @@global.max_connections = -1024;
56Warnings:
57Warning	1292	Truncated incorrect max_connections value: '-1024'
58SELECT @@global.max_connections;
59@@global.max_connections
601
61SET @@global.max_connections = 0;
62Warnings:
63Warning	1292	Truncated incorrect max_connections value: '0'
64SELECT @@global.max_connections;
65@@global.max_connections
661
67SET @@global.max_connections = 100001;
68Warnings:
69Warning	1292	Truncated incorrect max_connections value: '100001'
70SELECT @@global.max_connections;
71@@global.max_connections
72100000
73SET @@global.max_connections = ON;
74ERROR 42000: Incorrect argument type to variable 'max_connections'
75SELECT @@global.max_connections;
76@@global.max_connections
77100000
78SET @@global.max_connections = 'test';
79ERROR 42000: Incorrect argument type to variable 'max_connections'
80SELECT @@global.max_connections;
81@@global.max_connections
82100000
83SET @@global.max_connections = ' ';
84ERROR 42000: Incorrect argument type to variable 'max_connections'
85SELECT @@global.max_connections;
86@@global.max_connections
87100000
88'#-------------------FN_DYNVARS_074_05----------------------------#'
89SET @@session.max_connections = 4096;
90ERROR HY000: Variable 'max_connections' is a GLOBAL variable and should be set with SET GLOBAL
91SELECT @@session.max_connections;
92ERROR HY000: Variable 'max_connections' is a GLOBAL variable
93'#----------------------FN_DYNVARS_074_06------------------------#'
94SELECT @@global.max_connections = VARIABLE_VALUE
95FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
96WHERE VARIABLE_NAME='max_connections';
97@@global.max_connections = VARIABLE_VALUE
981
99SELECT @@max_connections = VARIABLE_VALUE
100FROM INFORMATION_SCHEMA.SESSION_VARIABLES
101WHERE VARIABLE_NAME='max_connections';
102@@max_connections = VARIABLE_VALUE
1031
104'#---------------------FN_DYNVARS_074_07----------------------#'
105SET @@global.max_connections = TRUE;
106SELECT @@global.max_connections;
107@@global.max_connections
1081
109SET @@global.max_connections = FALSE;
110Warnings:
111Warning	1292	Truncated incorrect max_connections value: '0'
112SELECT @@global.max_connections;
113@@global.max_connections
1141
115'#---------------------FN_DYNVARS_074_08----------------------#'
116SET @@global.max_connections = 5000;
117SELECT @@max_connections = @@global.max_connections;
118@@max_connections = @@global.max_connections
1191
120'#---------------------FN_DYNVARS_074_09----------------------#'
121SET max_connections = 6000;
122ERROR HY000: Variable 'max_connections' is a GLOBAL variable and should be set with SET GLOBAL
123SELECT @@max_connections;
124@@max_connections
1255000
126SET local.max_connections = 7000;
127ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'local.max_connections = 7000' at line 1
128SELECT local.max_connections;
129ERROR 42S02: Unknown table 'local' in field list
130SET global.max_connections = 8000;
131ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'global.max_connections = 8000' at line 1
132SELECT global.max_connections;
133ERROR 42S02: Unknown table 'global' in field list
134SELECT max_connections = @@session.max_connections;
135ERROR 42S22: Unknown column 'max_connections' in 'field list'
136SET @@global.max_connections = @start_value;
137SELECT @@global.max_connections;
138@@global.max_connections
139151
140