8.4 KiB
8.4 KiB
1 | taos> select CHAR_LENGTH('hello') |
---|---|
2 | char_length('hello') | |
3 | ======================== |
4 | 5 | |
5 | taos> select CHAR_LENGTH('hello world') |
6 | char_length('hello world') | |
7 | ============================= |
8 | 11 | |
9 | taos> select CHAR_LENGTH('hello world!') |
10 | char_length('hello world!') | |
11 | ============================== |
12 | 12 | |
13 | ================================================ |
14 | 18 | |
15 | taos> select CHAR_LENGTH('北京涛思数据科技有限公司') |
16 | char_length('北京涛思数据科技有限公司') | |
17 | ====================================================== |
18 | 12 | |
19 | taos> select CHAR_LENGTH('hello') + 1 |
20 | char_length('hello') + 1 | |
21 | ============================ |
22 | 6.000000000000000 | |
23 | taos> select CHAR_LENGTH('hello') - 1 |
24 | char_length('hello') - 1 | |
25 | ============================ |
26 | 4.000000000000000 | |
27 | taos> select CHAR_LENGTH('hello') from ts_4893.meters limit 5 |
28 | char_length('hello') | |
29 | ======================== |
30 | 5 | |
31 | 5 | |
32 | 5 | |
33 | 5 | |
34 | 5 | |
35 | taos> select CHAR_LENGTH('hello') + 1 from ts_4893.meters limit 1 |
36 | char_length('hello') + 1 | |
37 | ============================ |
38 | 6.000000000000000 | |
39 | taos> select CHAR_LENGTH('hello') + CHAR_LENGTH('hello') from ts_4893.meters limit 1 |
40 | char_length('hello') + char_length('hello') | |
41 | ============================================== |
42 | 1.000000000000000e+01 | |
43 | taos> select CHAR_LENGTH(nch1) from ts_4893.meters order by ts limit 5 |
44 | char_length(nch1) | |
45 | ======================== |
46 | 5 | |
47 | 10 | |
48 | 6 | |
49 | 7 | |
50 | 5 | |
51 | taos> select CHAR_LENGTH(var1) from ts_4893.meters order by ts limit 5 |
52 | char_length(var1) | |
53 | ======================== |
54 | 5 | |
55 | 6 | |
56 | 5 | |
57 | 5 | |
58 | 10 | |
59 | ================================= |
60 | 10 | |
61 | 16 | |
62 | 11 | |
63 | 12 | |
64 | 15 | |
65 | taos> select CHAR_LENGTH(cast(nch1 as varchar)) from ts_4893.meters order by ts limit 5 |
66 | char_length(cast(nch1 as varchar)) | |
67 | ===================================== |
68 | 5 | |
69 | 10 | |
70 | 6 | |
71 | 7 | |
72 | 5 | |
73 | ============================ |
74 | 25.000000000000000 | |
75 | 100.000000000000000 | |
76 | 36.000000000000000 | |
77 | 49.000000000000000 | |
78 | 25.000000000000000 | |
79 | taos> select sqrt(CHAR_LENGTH(nch1)) from ts_4893.meters order by ts limit 5 |
80 | sqrt(char_length(nch1)) | |
81 | ============================ |
82 | 2.236067977499790 | |
83 | 3.162277660168380 | |
84 | 2.449489742783178 | |
85 | 2.645751311064591 | |
86 | 2.236067977499790 | |
87 | taos> select cast(CHAR_LENGTH(nch1) as int) from ts_4893.meters order by ts limit 5 |
88 | cast(char_length(nch1) as int) | |
89 | ================================= |
90 | 5 | |
91 | 10 | |
92 | 6 | |
93 | 7 | |
94 | 5 | |
95 | taos> select char_length('taos') |
96 | char_length('taos') | |
97 | ======================== |
98 | 4 | |
99 | taos> select char_length('涛思') |
100 | char_length('涛思') | |
101 | ======================== |
102 | 2 | |
103 | taos> select char_length('涛思taos') |
104 | char_length('涛思taos') | |
105 | ============================ |
106 | 6 | |
107 | taos> select char_length('tao\'s') |
108 | char_length('tao\'s') | |
109 | ======================== |
110 | 5 | |
111 | taos> select char_length(nch1) from ts_4893.d0 limit 10 |
112 | char_length(nch1) | |
113 | ======================== |
114 | 5 | |
115 | 10 | |
116 | 6 | |
117 | 7 | |
118 | 5 | |
119 | 5 | |
120 | 5 | |
121 | 10 | |
122 | 5 | |
123 | 5 | |
124 | taos> select char_length(nch1) from ts_4893.meters limit 10 |
125 | char_length(nch1) | |
126 | ======================== |
127 | 5 | |
128 | 10 | |
129 | 6 | |
130 | 7 | |
131 | 5 | |
132 | 5 | |
133 | 5 | |
134 | 10 | |
135 | 5 | |
136 | 5 | |
137 | taos> select char_length(var1) from ts_4893.d0 limit 10 |
138 | char_length(var1) | |
139 | ======================== |
140 | 5 | |
141 | 6 | |
142 | 5 | |
143 | 5 | |
144 | 10 | |
145 | 6 | |
146 | 7 | |
147 | 6 | |
148 | 7 | |
149 | 5 | |
150 | taos> select char_length(var1) from ts_4893.meters limit 10 |
151 | char_length(var1) | |
152 | ======================== |
153 | 5 | |
154 | 6 | |
155 | 5 | |
156 | 5 | |
157 | 10 | |
158 | 6 | |
159 | 7 | |
160 | 6 | |
161 | 7 | |
162 | 5 | |
163 | taos> select char_length(null) |
164 | char_length(null) | |
165 | ======================== |
166 | NULL | |
167 | taos> select char_length('') |
168 | char_length('') | |
169 | ======================== |
170 | 0 | |
171 | taos> select char_length('あいうえお') |
172 | char_length('あいうえお') | |
173 | ================================= |
174 | 5 | |
175 | taos> select min(char_length(name)) from ts_4893.meters |
176 | min(char_length(name)) | |
177 | ========================= |
178 | 1 | |
179 | taos> select max(char_length(name)) from ts_4893.meters |
180 | max(char_length(name)) | |
181 | ========================= |
182 | 4 | |
183 | trim(name) | char_length(trim(name)) | |
184 | =========================================================== |
185 | lili | 4 | |
186 | upper(name) | char_length(upper(name)) | |
187 | ============================================================ |
188 | LILI | 4 | |
189 | ============================================================================== |
190 | lili - beijing | 14 | |
191 | ====================================================================== |
192 | lili | 4 | |
193 | name | char_length(name) | |
194 | ========================================================= |
195 | lili | 4 | |
196 | nch1 | char_length(nch1) | |
197 | ========================================================= |
198 | novel | 5 | |
199 | groupid | max(char_length(name)) | |
200 | =================================== |
201 | 1 | 4 | |
202 | location | avg(char_length(name)) | |
203 | ================================================= |
204 | beijing | 3.244600000000000 | |