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{{stamp|2021-09-16|4.10.2|1.10.2}}
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{{stamp|2021-11-04|4.10.2|1.10.2}}
 
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== The ''Database index'' into Memento Database ==
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Libraries can be linked so they can work together as a database. So, each library has a structure of fields & other things (see below for what make up its structure), and each database has a structure of libraries & links between them (see About:Database structure#Examples for an example).
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{{stamp|2021-09-20|4.10.2|1.10.2}}
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==Preamble on database terminology ==
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This is to get us on the same page regarding terms Memento users have used previously versus the terms chosen by Memento for its products. [[#The Database index, allowing quick access to Memento Database information|Jump to the database index]]
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=== Memento terms and database industry terms ===
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Sometimes some of us tend to use one set of terms for things, and some might use another set of terms for the same things, like "record" or (less often) "row" for a Memento entry and ...
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'''''Yada'''''
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The Memento Database application comprises ''libraries'' (often known outside Memento as tables), ''entries'' (often known outside Memento as rows), and ''fields'' (often known outside Memento as columns). A common generic term, recognized everwhere for either entries or rows is ''records''.
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In the Memento forum, "field" and "record" are often used and "column" and "row" is seldom used. So, it's best to stick with either Memento's "entry" (since it's their forum, after all), but when others use or seem to prefer the database industry's "record", we'll all know what is meant by that, and we can accommodate them when interacting with them, message by message in the forum.
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=== Databases and Libraries ===
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Likewise, within the database industry overall, "database" is used to mean the entire set of data used by a hopefully identified user or group of users to accomplish the users' personal or professional objectives, comprising libraries, entries, and fields. So, a person might use one database at home and another at work, and though many libraries will be different between libraries (like Customers at work and Groceries at home), some libraries might be used both at home and at work, often the most common and generic libraries, like People or Organizations.
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When a user's objectives are so small that a single library is enough, then in that case the database is the library. However, when a user's objectives require that libraries be linked together to accomplish the objectives, now the entire set of linked libraries constitute the database. That's why, whenever we go into Edit Library > Export to create a .template file, there's an option to include linked libraries. This makes the template a database export rather than merely a library export. For more on database exports, see [[How:Export a database|Export a database]].
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Libraries can be linked so they can work together as a database. So, each library has a structure of fields & other things (see below for what things make up its structure), and each database has a structure of libraries & links between them (see About:Database structure#Examples for an example).  
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== Index: Links to Database, User-interface-independent pages ==
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== The ''Database index'', allowing quick access to Memento Database information ==
'''''Insert links to user-interface-independent, database pages''
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Yada
    
=== Introduction ===
 
=== Introduction ===
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<br/>[[About:Color codes]]
 
<br/>[[About:Color codes]]
 
<br/>[[CaseStudy:Designing Memento databases:Photographic equipment]]
 
<br/>[[CaseStudy:Designing Memento databases:Photographic equipment]]
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=== Libraries & templates '''''(both editions, except maybe with templates)''''' ===
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{| class="wikitable" font-size="100%"
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! Topics !! Overviews !! Specifications !! About
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|-
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| style="width:25%;" | [[Library]]
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[[Library Template]]
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| style="width:25%;" | [[Libraries List screen]]
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[[Library Edit screen]]
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<br/>[[Library Groups]]
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<br/>[[Library Protection]]
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| style="width:25%;" | [[How:Add a Library]]
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| style="width:25%;" |
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|}
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=== Fields, pages, & subheaders '''''(both editions)''''' ===
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{| class="wikitable" font-size="100%"
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! Topics !! Overviews !! Specs !! Guidance
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|-
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| style="width:25%;" | [[Field]]
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[[Field Edit card]]
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<br/>[[Field Role]]
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<br/>[[Field Type]]
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<br/>[[Page]]
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| style="width:25%;" |
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| style="width:25%;" | <big>'''''Text fields'''''</big>
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:[[Text field|Text]]
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:[[Rich Text field|Rich text (HTML)]]
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:[[Phone Number field|Phone number]]
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:[[Email Address field|Email address]]
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:[[Hyperlink field|Hyperlink]]
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:[[Password field|Password]]
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:[[Barcode field|Barcode]]
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<big>'''''Numeric'' fields'''</big>
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:[[Integer field|Integer]]
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:[[Integer values field|Integer values]]
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:[[Currency field|Currency]]
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:[[Real number field|Real number]]
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:[[Rating field|Reading]]
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<big>'''''Choice'' fields'''</big>
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:[[Boolean field|Boolean]]
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:[[Single-choice List field|Single-choice list]]
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:[[Radio Buttons field|Radio buttons]]
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:[[Multiple-choice List field|Multiple-choice list]]
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:[[Checkboxes field|Checkboxes]]
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:[[List field|Dynamic List]]
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<big>'''''Calculated expression'' fields'''</big>
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:[[JavaScript field|JavaScript]]
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:[[Calculation field|Calculation]]
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<big>'''''Date'' fields'''</big>
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:[[Date field|Date]]
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:[[DateTime field|DateTime]]
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<big>'''''Time'' fields'''</big>
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:[[Time field|Time]]
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:[[DateTime field|DateTime]]
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<big>'''''Linking'' fields'''</big>
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:[[Link To Entry field|Link to entry]]
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:[[Link To File field|Link to file]]
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<big>'''''Media'' fields'''</big>
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:[[Audio field|Audio]]
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:[[Image field|Image]]
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:[[Signature field|Signature]]
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<big>'''''Miscellaneous'' fields'''</big>
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:[[Contact field|Contact]]
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:[[Location field|Location]]
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:[[Tags field|Tags]]
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<hr><big>'''''Special content'' fields'''</big>
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:[[Audio field]]
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:[[Barcode field]]
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:[[Contact field]]
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:[[Location field]]
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:[[Rich Text field]]
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:[[Signature field]]
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| style="width:25%;" | [[How:Field Dependencies|Field Dependencies]]
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[[Tips:Using JavaScript in Memento|Using JavaScript in Memento]]
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|}
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=== Entries & entry lists '''''(both editions)'''''  ===
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{| class="wikitable" font-size="100%"
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! Topics !! Overviews !! Specs !! Guidance
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|-
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| style="width:25%;" | [[Entry]]
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[[Data analysis]]
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| style="width:25%;" | [[Entry View card]]
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[[Entry Edit card]]
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<br/>[[Libraries List screen]]
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<br/>[[Library Entries List screen|Entries List screen]]
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| style="width:25%;" | [[How:Access a Previous Entry]]
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[[How:Slice & Dice Library Data]]
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| style="width:25%;" |
   
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=== Linking ===
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{| class="wikitable"
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! Topics !! Overviews !! Specs !! Guidance
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|-
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| style="width:25%;" | [[Calculation field]]
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[[Link To Entry field]]
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<br/>[[Link To File field]]
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=== Data Analysis (Slicing & dicing)<br/>(Sorting, grouping, filtering, aggregation, & charting) ===
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{| class="wikitable"
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! Topics !! Overviews !! Specs !! Guidance
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|-
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| style="width:25%;" | [[Slicing & Dicing]]
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[[Aggregation]]
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| style="width:25%;" | [[Library Entries List screen|Entries List screen]]
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[[Charting data]]
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| style="width:25%;" | [[How:Slice & Dice Library Data]]
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| style="width:25%;" |
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|}
      
=== Scripting, Calculation, & App Integration ===
 
=== Scripting, Calculation, & App Integration ===

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