Programming VIP

brief introduction Delete data in batch according to table primary key POST http://{Tcaplus_REST_URL} Request syntax Http request #Tencent cloud console RESTful Endpoint, ip:80, port: 80 by default http://172.17.0.22 #Tcallusdb local docker RESTful Endpoint, ip:31001, port default 31001 http://9.135.8.93:31001 Http head nameRequiredRes ...

brief introduction Obtain relevant records according to the primary key index, which is defined in the table definition proto file. The primary key index is an index designed based on the primary key field. The interface also supports the return of filter fields. Specify the field name to be returned through the Select parameter; The number of ...

I Metaball definition Metaball technology is a technology developed by Blinn in 1982, which is suitable for building deformable surfaces. This technology uses metaball to establish an energy field, and then establishes a 3D model through the equipotential surface in the scalar domain to represent the software or implicit surface. Simply put, i ...

1, Memory pool introduction 1. Introduction to C + + memory pool Memory pool is a kind of memory allocation method. It is to apply for allocating a certain number of memory blocks of equal size (generally) for standby before using memory. When there is a new memory demand, a part of the memory block is separated from the memory pool. If the m ...

preface: Hive is a data warehouse tool based on Hadoop, which operates Hadoop data warehouse (HDFS, etc.) with a kind of SQL HQL statement. Therefore, Hadoop needs to be built before installing local windows. The previous article has roughly introduced the environment construction and pit stepping summary, so here is still only the basic insta ...

Following the monitoring of fishing behaviors such as playing games and watching videos, the turnover intention of migrant workers will also be monitored. Some netizens broke the news that Zhihu was laying off low-key staff, and the video related departments had to lay off almost half. In the discussion area of Zhihu layoffs, some netizens sai ...

  this article is a section of a series of articles. Readers in need can go to the previous chapter if they encounter sudden symbols and terms. 1. Export table    the illustrate plug-in is essentially a dynamic link library. In addition to the import table, there are naturally export tables for the host software to call. Here, ...

Slow query and slow log Query and start of slow log Query whether the slow log is enabled mysql> show variables like 'slow_query_log'; +----------------+-------+ | Variable_name | Value | +----------------+-------+ | slow_query_log | OFF | +----------------+-------+ 1 row in set (0.00 sec) Enable slow query log # It is convenien ...

brief introductionWith lambda expressions, stream s and a series of minor optimizations, Java 8 has launched a new date and time API.The deficiency of Java in dealing with date, calendar and time: Java util. Date is set as a variable type, and SimpleDateFormat's non thread safety makes its application very limited. Then add new features to java ...

Object oriented and process oriented Process oriented: focus on causality without independence. Small individuals are formed by causality, and small individuals are formed as a whole by causality. Focus on the process. Object oriented: focus on objects. It doesn't care about how the underlying object is implemented, but only what the object c ...