雪花算法的 ID 每一位都有特殊的含义，我们从 ID 的不同位数就可以推断出对应的含义。此外，我们还可...
TO_TIMESTAMP_NTZ (timestamp with no time zone) TO_TIMESTAMP_TZ (timestamp with time zone)Note TO_TIMESTAMP maps to one of the other timestamp functions, based on the TIMESTAMP_TYPE_MAPPING session parameter. The parameter default is TIMESTAMP_NTZ, so TO_TIMESTAMP maps to TO_TIMESTAMP_...
if(timestamp < lastTimestamp) {thrownewRuntimeException(String.format("Clock moved backwards. Refusing to generate id for %d milliseconds", lastTimestamp - timestamp)); }//如果上次生成时间和当前时间相同,在同一毫秒内if(lastTimestamp == timestamp) {//sequence自增,因为sequence只有12bit,所以和se...
Auto Suspend:Specifies the amount of inactivity time (in seconds) before a warehouse is automatically suspended SQL SHOW PARAMETERS IN ACCOUNT LIKE 'AUTO_SUSPEND'; Default Role:Defines the default role assigned to new users SQL SHOW PARAMETERS IN ACCOUNT LIKE 'DEFAULT_ROLE'; Encryption:Indicates wh...
DATETIME is an alias for TIMESTAMP_NTZ. TIME Snowflake supports a single TIME data type for storing times in the form ofHH:MI:SS. TIME supports an optional precision parameter for fractional seconds (for example,TIME(3)). Time precision can range from 0 (seconds) to 9 (nanoseconds). The...
Number of seconds before timeout occurs database database string database schema schema string schema warehouse warehouse string warehouse role role string role timezone timezone string Time zone to use when executing the statement. query tag query_tag string Query tag that you want ...
*/publicsynchronizedlongnextId(){longtimestamp=timeGen();//如果当前时间小于上一次ID生成的时间戳,说明系统时钟回退过这个时候应当抛出异常if(timestamp < lastTimestamp) {thrownewRuntimeException( String.format("Clock moved backwards. Refusing to generate id for %d milliseconds", lastTimestamp - timest...
Warehouses will automatically resume, within several seconds, once a query is received. With Snowflake only charging for resources when a warehouse is under use, this behavior caters to workloads that often sit idle, like ad-hoc querying. However, many real-time analytics workloads require ...
"locale_timezone" varchar comment 'The timezone as reported by the device offset in seconds from UTC.', "locale_language_code" varchar comment 'The ISO 639-1 two-letter language code as defined in device settings.', "iana_timezone" varchar comment 'The IANA timezone of the device.', ...
Straightforward to use with no code –You don’t need to write applications. Real-time data delivery –You can get data to your destinations quickly and efficiently in seconds. Integration with over 20 AWS services –Seamless integration is available for many A...