e.namedvaluesisnotdefined。
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如何解决Timestamp字段的Defalut值不生效的问题?
# 问题描述如下的表结构, INSERT INTO tenant_rd (`register_time`) VALUES (`null`) ,其中 register_time 是一个空对象,数据库表中会新增一条记录,为什么 register_time 插入的值为 current date 而不是 DEFAULT '2022-04-05 10:00:00'?```sql CREATE TABLE `tenant_rd` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `register_time` timestamp NOT NULL DEFAULT '2022-04-05 10:00:00' CO...
如何解决Timestamp字段的Defalut值不生效的问题?
# 问题描述如下的表结构, INSERT INTO tenant_rd (`register_time`) VALUES (`null`) ,其中 register_time 是一个空对象,数据库表中会新增一条记录,为什么 register_time 插入的值为 current date 而不是 DEFAULT '2022-04-05 10:00:00'?```sql CREATE TABLE `tenant_rd` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `register_time` timestamp NOT NULL DEFAULT '2022-04-05 10:00:00' COM...
如何使用Linux crontab实现定时任务
etc/crontab# /etc/crontab: system-wide crontab# Unlike any other crontab you don't have to run the `crontab'# command to install the new version when you edit this file# and files in /etc/cron.d... defined through a single line# indicating with different fields when the task will be run# and what command to run for the task# # To define the time you can provide concrete values for# minute...
如何使用Linux crontab实现定时任务
etc/crontab# /etc/crontab: system-wide crontab# Unlike any other crontab you don't have to run the `crontab'# command to install the new version when you edit this file# and files in /etc/cron.d... defined through a single line# indicating with different fields when the task will be run# and what command to run for the task# # To define the time you can provide concrete values for# minute...
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Positive integer = access the n-th member/key from the beginning. Negative integer = access the n-th member/key from the end. Minimum index of the element is 1. Thus the element 0 does not exist. You may use integers to access both JSON arrays and JSON objects. Return_type – ByteHouse data type. Returned value Extracted value of the given ByteHouse data type. Example sql SELECT JSONExtract('{...
如何解决Timestamp字段的Defalut值不生效的问题?
# 问题描述如下的表结构, INSERT INTO tenant_rd (`register_time`) VALUES (`null`) ,其中 register_time 是一个空对象,数据库表中会新增一条记录,为什么 register_time 插入的值为 current date 而不是 DEFAULT '2022-04-05 10:00:00'?```sql CREATE TABLE `tenant_rd` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `register_time` timestamp NOT NULL DEFAULT '2022-04-05 10:00:00' CO...
如何解决Timestamp字段的Defalut值不生效的问题?
# 问题描述如下的表结构, INSERT INTO tenant_rd (`register_time`) VALUES (`null`) ,其中 register_time 是一个空对象,数据库表中会新增一条记录,为什么 register_time 插入的值为 current date 而不是 DEFAULT '2022-04-05 10:00:00'?```sql CREATE TABLE `tenant_rd` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `register_time` timestamp NOT NULL DEFAULT '2022-04-05 10:00:00' COM...
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ByteHouse 云数仓版支持用户定义函数(UDF,User Defined Functions),可以通过调用任何外部可执行程序或脚本来处理数据。ByteHouse 云数仓版支持以下类型的UDF: Lambda UDF:用户定义的Lambda函数 Python UDF:用Pytho... eth-account==0.7.0eth-hash==0.3.3eth-keyfile==0.6.0eth-keys==0.4.0eth-rlp==0.3.0eth-typing==3.2.0eth-utils==2.0.0ethereum-abi-utils==0.4.7ethereum-tester==0.1.0b3ethereum-utils==0.6.2frozenlist==1.3...
时间和日期函数
Arguments unit — The type of interval for result. String.Possible values:second minute hour day week month quarter year startdate — The first time value to subtract (the subtrahend). Date or DateTime. enddate — The second time value to subtract from (the minuend). Date or DateTime. timezone — Timezone name (optional). If specified, it is applied to both startdate and enddate. If not specifi...
如何使用Linux crontab实现定时任务
etc/crontab# /etc/crontab: system-wide crontab# Unlike any other crontab you don't have to run the `crontab'# command to install the new version when you edit this file# and files in /etc/cron.d... defined through a single line# indicating with different fields when the task will be run# and what command to run for the task# # To define the time you can provide concrete values for# minute...
如何使用Linux crontab实现定时任务
etc/crontab# /etc/crontab: system-wide crontab# Unlike any other crontab you don't have to run the `crontab'# command to install the new version when you edit this file# and files in /etc/cron.d... defined through a single line# indicating with different fields when the task will be run# and what command to run for the task# # To define the time you can provide concrete values for# minute...
配置 Oracle 数据源
er-Defined Types 不支持 不支持 AnyType 不支持 不支持 AnyData 不支持 不支持 AnyDataSet 不支持 不支持 XmlType 支持 支持 Spatial Types 不支持 不支持 Media Types 不支持 不支持 Oracle 读针对 Oracle 类型的转换列表,如下所示: 类型分类 Oracle 数据类型 整数类 INTEGER、INT和SMALLINT 浮点类 NUMBER、NUMERIC、DECIMAL、FLOAT、DOUBLE PRECISIOON、REAL、BINARY_FLOAT、BINARY_DOUBLE、DEC ...
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( TETrackType_Video , 0, TETrackDurationType_Fixed ); 2、用addAudioTrack方法添加音频素材public int addAudioTrack(String file, int trimIn, int trimOut, int sequenceIn, int sequenceOut, boolean isCy... 即一张静止图片 // 初始化水印UIImage *image = [UIImage imageNamed:@"logo"];CGSize imageSize = CGSizeMake(image.size.width / config.outputSize.width, image.size.height / config.outputSize.height);CGRe...
