一、问题描述 数据库里的 float momey 类型,都会精确到多位小数。但有时候 我们不需要那么精确,例如,只精确到两位有效数字。 二、sqlserver解决方案: 1. 使用 Round() 函数,如 Round(@num,2) ,其中参数 2 表示 保留两位有效数字。 缺点:Round() 只是负责四舍五入到两位小数,但是不负责去掉后面的0。 print ...
*/publicclassMyDBPreciseShardingAlgorithmimplementsPreciseShardingAlgorithm<Long>{@OverridepublicStringdoSharding(Collection<String>databaseNames,PreciseShardingValue<Long>shardingValue){/** * databaseNames 所有分片库的集合 * shardingValue 为分片属性,其中 logicTableName 为逻辑表,columnName 分片健(字段),value...
TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications. - pingcap/tidb
aws_terraform_create_credential.sh - creates a AWS terraform service account with Administrator permissions for Terraform Cloud or other CI/CD systems to run Terraform plan and apply, since no CI/CD systems can work with AWS SSO workflows. Stores the access key as both CSV and prints shell ex...
( mike ) ; -- execute immediate 'ALTER SESSION DISABLE GUARD' ; execute immediate 'ALTER SESSION ADVISE ROLLBACK' ; EXECUTE IMMEDIATE ' alter session ' || command_val || 'parallel ' || type_value ; END TEST_CALL; / Output Create or replace PROCEDURE PUBLIC.TEST_CALL is command_...
介绍使用GaussDB数据库命令行交互工具登录数据库后,gsql所提供的元命令。所谓元命令就是在gsql里输入的任何以不带引号的反斜杠开头的命令。一个gsql元命令的格式是反斜杠后面紧跟一个动词,然后是任意参数。参数命令动词和其他参数以任意个空白字符间隔。要在参数里面包含
不指定 shard key 建表方法,系统默认使用第一个字段作为表的 shard key。 postgres=# create table t_first_col_share(id serial not null,nickname text); CREATE TABLE postgres=# \d+ t_first_col_share Table"public.t_first_col_share" Column|Type|Modifiers|Storage|Stats target|Description ...
packagecom.lonelyWolf.mybatis.typeHandler;importorg.apache.ibatis.type.BaseTypeHandler;importorg.apache.ibatis.type.JdbcType;importjava.sql.CallableStatement;importjava.sql.PreparedStatement;importjava.sql.ResultSet;importjava.sql.SQLException;publicclassMyTypeHandlerextendsBaseTypeHandler<String>{@Overridepublicvoid...
Supported values for the <environment name> parameter are AzureCloud, AzureChinaCloud, or AzureUSGovernment depending which Azure subscription you're using. $AzureEnvironment = "<EnvironmentName>" # Point to the directory where the resource provider installation files were extracted. $tempDir = 'C:...
Azure SQL and SQL Server on Azure VM support using an RSA key stored in a Managed HSM as TDE protector. Azure Key Vault Managed HSM is a fully managed, highly available, single-tenant, standards-compliant cloud service that enables you to safeguard cryptographic keys for your cloud applications...