Database Schema DefinitionThe conceptual schema in IDEFlx is used in the CAD*I database group to describe the handled entities, properties and attributes, The formal data structure used in the CAD*I project is described...doi:10.1007/978-3-642-84335-8_5M. Raflik...
Schema是数据中的抽象描述,即元数据,数据库中的Schema Change主要通过DDL(Data Definition Language/数据定义语言)对数据描述的修改,通常理解为Schema的修改语言,对应到传统数据库的操作就会有CREATE TABLE/ALTER TABLE/DROP TABLE等。 2.分布式中 Schema Change存在的问题 在单机的数据库中,可以利用事务做到schema变更操...
DefinitionNamespace: Java.Sql Assembly: Mono.Android.dll Retrieves whether a schema name can be used in an index definition statement. C# 复制 [Android.Runtime.Register("supportsSchemasInIndexDefinitions", "()Z", "GetSupportsSchemasInIndexDefinitionsHandler:Java.Sql.IDatabas...
class Illuminate \ Database \ Schema \ IndexDefinition IndexDefinition class IndexDefinition extends Fluent (View source) Propertiesprotected $attributes from FluentMethodsvoid __construct(TValue> $attributes = []) Create a new fluent instance.from Fluent...
Database schema definition DSL is documentedhere. If you want to analyze your database structure in any way from your app (e.g. defining methods with#define_methodfor each enum value) you can useDbSchema.current_schema- it returns a cached copy of the database structure as aDbSchema::Def...
美[ˈskimə] 英[ˈskiːmə] n.纲要 网络模式;图式;架构 复数:schemata 同义词 n. plan,diagram,scheme,schematic,representation 权威英汉双解 英汉 英英 网络释义 schema n. 1. (计划或理论的)提要,纲要an outline of a plan or theory ...
Expands to show the properties Name, Database, andSchema. 展开以显示“名称” 、 “数据库”和“架构”的属性. 期刊摘选 Schema: the annotation'% 1'on the empty content element'% 2'is not supported. 架构: 不支持空内容元素'%2'上的批注'%1'. ...
Database structure. It encompasses both the database schema and the physical database organization. Structure is a broader term that explains how the database elements are arranged, their relationship, and storage on a device. The main difference between a schema and a structure is in their span...
這個supportsSchemasInTableDefinitions 方法是由 java.sql.DatabaseMetaData 介面中的 supportsSchemasInTableDefinitions 方法指定。 另請參閱 SQLServerDatabaseMetaData 方法 SQLServerDatabaseMetaData 成員 SQLServerDatabaseMetaData 類別 其他資源 事件 加入我們在 FabCon Vegas ...
base-name Range of values: String Default value: N/A Parent elements: profiling export-profiling Function Defines the basename of the exported data file to create. See "Dumping Profiling Data to Disk from a Batch Process" in Kodo 4.2.0 Developers Guide for JPA/JDO. Example <base-name>...