h2

css rem 应用

由 眉间皱痕 提交于 2019-12-12 13:46:14
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> css rem 应用 根据设计稿的实际宽度值,与设计稿最大宽度值,动态计算根字体大小，适应不同的屏幕比例。 本文的px转rem换算公式为: 100px = 1rem 18px = 0.18rem 基础css body,dl,dd,ul,ol,h1,h2,h3,h4,h5,h6,pre,form,input,textarea,p,hr,thead,tbody,tfoot,th,td{margin:0;padding:0;} ul,ol{list-style:none;} a{text-decoration:none;} html{-ms-text-size-adjust:none;-webkit-text-size-adjust:none;text-size-adjust:none;} body{line-height:1.5; font-size:14px;} body,button,input,select,textarea{font-family:'helvetica neue',tahoma,'hiragino sans gb',stheiti,'wenquanyi micro hei',\5FAE\8F6F\96C5\9ED1,\5B8B\4F53,sans-serif;} b,strong{font

H2 and PostgreSQL compatibility mode limitations

由 Deadly 提交于 2019-12-12 13:31:37
问题 I'm using H2 database as in-memory database for tests where PostgreSQL is being used in production. This setup works fine except some minor differences between the two. One I'm concerned about right now is the 64 length limit for identifiers in PostgreSQL. H2 seems to support sort of unlimited identifiers length which is causing troubles for me because I have dynamically generated schemas and once the column/table/schema identifiers are longer than 64 characters it works in H2 but the problem

H2 database: clustered indexes support

由 六月ゝ 毕业季﹏ 提交于 2019-12-12 13:30:40
问题 I use H2 database for environmental data which contains lots of time series. Time series are simply measurement values of sensors which are recorded in database periodically (say once per hour). The data stored in the table: CREATE TABLE hydr (dt timestamp ,value double ,sensorid int) I would like to make range queries against the table, for example: select * from hydr where dt between '2010-01-01' and '2010-10-01' In order to improve performance I would like to build clustered index over dt

What is the default username and password for h2 when there's nothing explicit in JDBC?

由 六月ゝ 毕业季﹏ 提交于 2019-12-12 07:41:21
问题 From a program, I created a H2 database without specifying any user or password in the JDBC URL. Now I'm trying to access that database with the Script tool. The doc says to use -user sa in the default case. That doesn't work, and it still doesn't work if I either add -password sa or remove -user . What am I missing? /opt/h2/bin java -cp h2-1.3.161.jar org.h2.tools.Script -url jdbc:h2:/data/jug/jas-coref.h2 -user sa -password sa -script /data/jug/ris-start.sql Exception in thread "main" org

Stored procedure returns an array; how to use in SQL?

由 一曲冷凌霜 提交于 2019-12-12 05:27:41
问题 I am writing an accounting system backed by an h2 database. The tree of accounts is stored in the ACCOUNTS table, with the PARENT_ID column storing the links in the tree. To get the path to a given node in the tree, I have the following stored procedure: public static Object[] getAncestorPKs(Long id) whose job is to produce an array of integers, being the PARENT_ID values between the given node and the root of the tree. I register the procedure in the database under the name ANCESTOR_PKS like

java H2 hanging on getLocalhost on arm32 device

由 醉酒当歌 提交于 2019-12-12 04:36:40
问题 My application works fine on Windows, OSX an, Ubuntu and other flavours of linux until now . On an arm 32 machine using jdk-8u121-linux-arm32-vfp-hflt.tar.gz it is hanging for five minutes on trying to create a Hibernate database using pure java database H2 and then giving up public static void recreateDatabase() { Configuration config; config = HibernateUtil.getInitializedConfigurationAndRebuildAuditTables(); new SchemaExport(config).create(false,true); factory = config.buildSessionFactory()

wso2 is change the embedded database schema

由 三世轮回 提交于 2019-12-12 04:34:14
问题 I am working with the WSO2 IS 5.2.0 for some reasons, I would like to change the data schema of the default embedded H2 database. for example, the maximum length of volume "ACCESS_TOKEN" in table "IDN_OAUTH2_ACCESS_TOKEN" is 255 chars. I would like to change it to 8194. I made the following change the configuration file "/dbscripts/identity/h2.sql" (see the value "8194") CREATE TABLE IF NOT EXISTS IDN_OAUTH2_ACCESS_TOKEN ( TOKEN_ID VARCHAR (255), ACCESS_TOKEN VARCHAR (8194), REFRESH_TOKEN

Why I can't find my tables in H2 schema / How can I validate which H2 schema my Spring boot app is working with?

由 安稳与你 提交于 2019-12-12 04:01:28
问题 I'm running a spring boot app didn't have any setting for h2 other than maven when i'm connecting to the h2 console i can see the tables that were supposed to be created for two entities i connected with the JDBC URL: jdbc:h2:mem:testdb (which is supposed to be the default) Is there a way to make sure what schemas is H2 currently running/ or some log file for H2 ? in my application.properties i have this: spring.h2.console.enabled=true spring.h2.console.path=/h2 I read somewhere that H2

CURRENT_TIMESTAMP in milliseconds in h2

由 本小妞迷上赌 提交于 2019-12-12 03:33:23
问题 The question CURRENT_TIMESTAMP in milliseconds discussed how to "get milliseconds out of a timestamp in MySql or PostgreSql ". But the methods in the answers don't work because H2 doesn't support MySQL methods like conv . I want to use a variant of CURRENT_TIMESTAMP for the defaultValueComputed of my schema file. How can I get the exact milliseconds of a timestamp in H2 ? I want it be a long . I also want the milliseconds returned to be in Unix time. Here it is in my schema file: <column name

Sub Query with WITH-CLAUSE in H2DB

由 依然范特西╮ 提交于 2019-12-12 03:30:11
问题 I have a simple SQL query to count all Employees in a Department(within children) like: With Temp(id) AS ( Select d.id From DEPARTMENT d Where d.id = 1 UNION ALL Select d.id From DEPARTMENT d JOIN Temp te ON d.idDepartment = te.id ) Select count(*) From ( Select e.id From Employee e Join Temp te On e.idDepartment = te.id ) But i give a error "StackOverflow", I dont know where is mistake, can you help me? there are some data for test case: Table Department : ID----------departmentName---------
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