9.9 KiB
9.9 KiB
1 | taos> select TRUNCATE(10.55, 3) |
---|---|
2 | truncate(10.55, 3) | |
3 | ============================ |
4 | 10.550000000000001 | |
5 | taos> select TRUNCATE(10.55, 2) |
6 | truncate(10.55, 2) | |
7 | ============================ |
8 | 10.550000000000001 | |
9 | taos> select TRUNCATE(10.55, 1) |
10 | truncate(10.55, 1) | |
11 | ============================ |
12 | 10.500000000000000 | |
13 | taos> select TRUNCATE(10.55, 0) |
14 | truncate(10.55, 0) | |
15 | ============================ |
16 | 10.000000000000000 | |
17 | taos> select TRUNCATE(10.55, -1) |
18 | truncate(10.55, -1) | |
19 | ============================ |
20 | 10.000000000000000 | |
21 | taos> select TRUNCATE(10.55, -10) |
22 | truncate(10.55, -10) | |
23 | ============================ |
24 | 0.000000000000000 | |
25 | taos> select TRUNCATE(-10.55, 1) |
26 | truncate(-10.55, 1) | |
27 | ============================ |
28 | -10.500000000000000 | |
29 | taos> select TRUNCATE(99, 1) |
30 | truncate(99, 1) | |
31 | ======================== |
32 | 99 | |
33 | taos> select TRUNCATE(10.55, 1) + 1 |
34 | truncate(10.55, 1) + 1 | |
35 | ============================ |
36 | 11.500000000000000 | |
37 | taos> select TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(123.123456789, 9), 8), 7), 6), 5), 4), 3) |
38 | truncate(truncate(truncate(truncate(truncate(truncate(truncate(1 | |
39 | =================================================================== |
40 | 1.231230000000000e+02 | |
41 | taos> select TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(TRUNCATE(123456789.123456789, -1), -2), -3), -4), -5), -6), -7) |
42 | truncate(truncate(truncate(truncate(truncate(truncate(truncate(1 | |
43 | =================================================================== |
44 | 1.200000000000000e+08 | |
45 | taos> select TRUNCATE(87654321.123456789, id) from ts_4893.meters order by ts limit 10 |
46 | truncate(87654321.123456789, id) | |
47 | =================================== |
48 | 8.765432100000000e+07 | |
49 | 8.765432109999999e+07 | |
50 | 8.765432112000000e+07 | |
51 | 8.765432112300000e+07 | |
52 | 8.765432112340000e+07 | |
53 | 8.765432112345000e+07 | |
54 | 8.765432112345600e+07 | |
55 | 8.765432112345670e+07 | |
56 | 8.765432112345679e+07 | |
57 | 8.765432112345679e+07 | |
58 | taos> select TRUNCATE(current, id) from ts_4893.meters order by ts limit 10 |
59 | truncate(current, id) | |
60 | ======================== |
61 | 1.0000000e+01 | |
62 | 8.5000000e+00 | |
63 | 9.7900000e+00 | |
64 | 1.1233000e+01 | |
65 | 1.0706000e+01 | |
66 | 8.5080004e+00 | |
67 | 9.5959997e+00 | |
68 | 1.0962000e+01 | |
69 | 1.1226000e+01 | |
70 | 1.0337000e+01 | |
71 | taos> select TRUNCATE(current, 1) from ts_4893.meters order by ts limit 10 |
72 | truncate(current, 1) | |
73 | ======================= |
74 | 10.6000004 | |
75 | 8.5000000 | |
76 | 9.6999998 | |
77 | 11.1999998 | |
78 | 10.6999998 | |
79 | 8.5000000 | |
80 | 9.5000000 | |
81 | 10.8999996 | |
82 | 11.1999998 | |
83 | 10.3000002 | |
84 | taos> select TRUNC(10.55, 3) |
85 | trunc(10.55, 3) | |
86 | ============================ |
87 | 10.550000000000001 | |
88 | taos> select TRUNC(10.55, 2) |
89 | trunc(10.55, 2) | |
90 | ============================ |
91 | 10.550000000000001 | |
92 | taos> select TRUNC(10.55, 1) |
93 | trunc(10.55, 1) | |
94 | ============================ |
95 | 10.500000000000000 | |
96 | taos> select TRUNC(10.55, 0) |
97 | trunc(10.55, 0) | |
98 | ============================ |
99 | 10.000000000000000 | |
100 | taos> select TRUNC(10.55, -1) |
101 | trunc(10.55, -1) | |
102 | ============================ |
103 | 10.000000000000000 | |
104 | taos> select TRUNC(10.55, -10) |
105 | trunc(10.55, -10) | |
106 | ============================ |
107 | 0.000000000000000 | |
108 | taos> select TRUNC(-10.55, 1) |
109 | trunc(-10.55, 1) | |
110 | ============================ |
111 | -10.500000000000000 | |
112 | taos> select TRUNC(99, 1) |
113 | trunc(99, 1) | |
114 | ======================== |
115 | 99 | |
116 | taos> select TRUNC(10.55, 1) + 1 |
117 | trunc(10.55, 1) + 1 | |
118 | ============================ |
119 | 11.500000000000000 | |
120 | taos> select TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(123.123456789, 9), 8), 7), 6), 5), 4), 3) |
121 | trunc(trunc(trunc(trunc(trunc(trunc(trunc(123.123456789, 9), 8), | |
122 | =================================================================== |
123 | 1.231230000000000e+02 | |
124 | taos> select TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(TRUNC(123456789.123456789, -1), -2), -3), -4), -5), -6), -7) |
125 | trunc(trunc(trunc(trunc(trunc(trunc(trunc(123456789.123456789, - | |
126 | =================================================================== |
127 | 1.200000000000000e+08 | |
128 | taos> select TRUNC(87654321.123456789, id) from ts_4893.meters order by ts limit 10 |
129 | trunc(87654321.123456789, id) | |
130 | ================================ |
131 | 8.765432100000000e+07 | |
132 | 8.765432109999999e+07 | |
133 | 8.765432112000000e+07 | |
134 | 8.765432112300000e+07 | |
135 | 8.765432112340000e+07 | |
136 | 8.765432112345000e+07 | |
137 | 8.765432112345600e+07 | |
138 | 8.765432112345670e+07 | |
139 | 8.765432112345679e+07 | |
140 | 8.765432112345679e+07 | |
141 | taos> select TRUNC(current, id) from ts_4893.meters order by ts limit 10 |
142 | trunc(current, id) | |
143 | ======================= |
144 | 10.0000000 | |
145 | 8.5000000 | |
146 | 9.7900000 | |
147 | 11.2329998 | |
148 | 10.7060003 | |
149 | 8.5080004 | |
150 | 9.5959997 | |
151 | 10.9619999 | |
152 | 11.2259998 | |
153 | 10.3369999 | |
154 | taos> select TRUNC(current, 1) from ts_4893.meters order by ts limit 10 |
155 | trunc(current, 1) | |
156 | ======================= |
157 | 10.6000004 | |
158 | 8.5000000 | |
159 | 9.6999998 | |
160 | 11.1999998 | |
161 | 10.6999998 | |
162 | 8.5000000 | |
163 | 9.5000000 | |
164 | 10.8999996 | |
165 | 11.1999998 | |
166 | 10.3000002 | |
167 | taos> select truncate(99.99, 3) |
168 | truncate(99.99, 3) | |
169 | ============================ |
170 | 99.989999999999995 | |
171 | taos> select truncate(99.99, 2) |
172 | truncate(99.99, 2) | |
173 | ============================ |
174 | 99.989999999999995 | |
175 | taos> select truncate(99.99, 1) |
176 | truncate(99.99, 1) | |
177 | ============================ |
178 | 99.900000000000006 | |
179 | taos> select truncate(99.99, 0) |
180 | truncate(99.99, 0) | |
181 | ============================ |
182 | 99.000000000000000 | |
183 | taos> select truncate(99.99, -1) |
184 | truncate(99.99, -1) | |
185 | ============================ |
186 | 90.000000000000000 | |
187 | taos> select truncate(99.99, -10) |
188 | truncate(99.99, -10) | |
189 | ============================ |
190 | 0.000000000000000 | |
191 | taos> select truncate(99, 1) |
192 | truncate(99, 1) | |
193 | ======================== |
194 | 99 | |
195 | taos> select truncate(current, 1) from ts_4893.d0 order by ts limit 10 |
196 | truncate(current, 1) | |
197 | ======================= |
198 | 10.6000004 | |
199 | 8.5000000 | |
200 | 9.6999998 | |
201 | 11.1999998 | |
202 | 10.6999998 | |
203 | 8.5000000 | |
204 | 9.5000000 | |
205 | 10.8999996 | |
206 | 11.1999998 | |
207 | 10.3000002 | |
208 | taos> select truncate(current, 1) from ts_4893.meters order by ts limit 10 |
209 | truncate(current, 1) | |
210 | ======================= |
211 | 10.6000004 | |
212 | 8.5000000 | |
213 | 9.6999998 | |
214 | 11.1999998 | |
215 | 10.6999998 | |
216 | 8.5000000 | |
217 | 9.5000000 | |
218 | 10.8999996 | |
219 | 11.1999998 | |
220 | 10.3000002 | |
221 | taos> select truncate(99.99, null) |
222 | truncate(99.99, null) | |
223 | ============================ |
224 | NULL | |
225 | taos> select truncate(null, 3) |
226 | truncate(null, 3) | |
227 | ==================== |
228 | NULL | |
229 | taos> select truncate(1.0001, 3) |
230 | truncate(1.0001, 3) | |
231 | ============================ |
232 | 1.000000000000000 | |
233 | taos> select truncate(2.71828, 4) |
234 | truncate(2.71828, 4) | |
235 | ============================ |
236 | 2.718200000000000 | |
237 | taos> select truncate(3.14159, 2) |
238 | truncate(3.14159, 2) | |
239 | ============================ |
240 | 3.140000000000000 | |
241 | taos> select truncate(100.9876, 2) |
242 | truncate(100.9876, 2) | |
243 | ============================ |
244 | 100.980000000000004 | |
245 | taos> select truncate(99999999999999.9999, 2) |
246 | truncate(99999999999999.9999, 2) | |
247 | =================================== |
248 | 1.000000000000000e+14 | |
249 | taos> select truncate(-5.678, 2) |
250 | truncate(-5.678, 2) | |
251 | ============================ |
252 | -5.670000000000000 | |
253 | taos> select truncate(voltage, 2) from ts_4893.meters limit 1 |
254 | truncate(voltage, 2) | |
255 | ======================= |
256 | 221 | |
257 | taos> select truncate(current, 1) from ts_4893.meters limit 1 |
258 | truncate(current, 1) | |
259 | ======================= |
260 | 10.6000004 | |
261 | taos> select truncate(phase, 3) from ts_4893.meters limit 1 |
262 | truncate(phase, 3) | |
263 | ======================= |
264 | 0.5080000 | |
265 | taos> select truncate(voltage + current, 2) from ts_4893.meters limit 1 |
266 | truncate(voltage + current, 2) | |
267 | ================================= |
268 | 2.316400000000000e+02 | |
269 | taos> select truncate(voltage, -1) from ts_4893.meters limit 1 |
270 | truncate(voltage, -1) | |
271 | ======================== |
272 | 220 | |
273 | taos> select round(truncate(voltage, 1), 2) from ts_4893.meters limit 1 |
274 | round(truncate(voltage, 1), 2) | |
275 | ================================= |
276 | 221 | |
277 | taos> select truncate(abs(current), 1) from ts_4893.meters limit 1 |
278 | truncate(abs(current), 1) | |
279 | ============================ |
280 | 1.0600000e+01 | |
281 | taos> select truncate(exp(phase), 2) from ts_4893.meters limit 1 |
282 | truncate(exp(phase), 2) | |
283 | ============================ |
284 | 1.660000000000000 | |
285 | taos> select truncate(log(current), 1) from ts_4893.meters limit 1 |
286 | truncate(log(current), 1) | |
287 | ============================ |
288 | 2.300000000000000 | |