Create, Alter and Drop Table Cassandra Table in Cassandra is a collection of ordered (by name) columns fetched by row. A row consists of columns and have a primary key. The first part of the key is a column name. Subsequent parts of a compound key are
Keyspace Cassandra
A keyspace is a container that holds the column families, user defined types. In Cassandra, Keyspace is similar to schema RDBMS Database. Keyspace holds column families, indexes, user defined types, data center awareness, strategy used in keyspace, replication factor, etc. Syntax CREATE KEYSPACE | SCHEMA IF NOT
How To Manage Users NoSql Cassandra using `cqlsh`
In this tutorial we learn how to manage user in database cassandra. Setting the cassandra database using username and password authentication. Learn how to login using default username and password cassandra, create user with or without password, create user superuser and nosuperuser, modifying user and dropping user.
Spring Boot Using Hikari Connection Pool
# Spring Boot Using Hikari Connection Pool Connection Pool In software engineering, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required. Connection pools are used to enhance the performance of executing
Dynamic Call Store Procedure and Function Database
spring-boot-call-store-procedure Dynamic calling store procedure and store function in database Dynamic calling store procedure and function 1. Via Callable Statement 2. Via SimpleJdbcCall spring-boot-starter-jdbc See Code Snippets Store Procedure DELIMITER $$ USE `training_sp`$$ DROP PROCEDURE IF EXISTS `create_product`$$ CREATE DEFINER=`root`@`localhost` PROCEDURE `create_product`(id VARCHAR(255), p_code VARCHAR(255),p_name VARCHAR(255),weight BIGINT)
Rest Documentation with Swagger And Spring boot
Simple Spring-boot Swagger Documentation Learning Swagger documentation for rest. To Add Swagger to your application add the depedencies <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.7.0</version> <scope>compile</scope> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.7.0</version> <scope>compile</scope> </dependency> create SwaggerConfiguration class @EnableSwagger2 @Configuration public class SwaggerConfig { @Bean public Docket productAPI(){ return new
Implementation Dynamic Specification Using RSQL-Parser Example
Introducing Changes Is Enemy, But We Must Prepared . – I have been code with spring boot and thymeleaf, When the *User Interface * add a new search criteria the backend code (my repository, service and controller) must changed too. Honestly I don’t like that. to much
Simple Implementations Tesseract OCR on Android
Tesseract is an optical character recognition engine for various operating systems. It is free software, released under the Apache License, Version 2.0, and development has been sponsored by Google since 2006. Tesseract is considered one of the most accurate open source OCR engines currently available Wikipedia Image
Small Case But Solve BolierPlate Of My Code StringUtils Apache Common Lang.
StringUtils is Operations on String that are null safe. Snipset code below was a my code history. //when i was in collage String result="putracode": if(data ==null && data.length>0 ){ result=data; } //First Time in Job String result= (data ==null && data.length>0 ? data ; "putracode"); //And Now
FastDateFormat is Fast by Apache Commons Lang Example
FastDateFormat is a fast and thread-safe version of SimpleDateFormat.To obtain an instance of FastDateFormat, use one of the static factory methods: getInstance(String, TimeZone, Locale), getDateInstance(int, TimeZone, Locale),getTimeInstance(int, TimeZone, Locale), or getDateTimeInstance(int, int, TimeZone, Locale) Since FastDateFormat is thread safe, you can use a static member instance: private