IT. Expert System.

Android Reference

BaseColumns

android.provider

Interface BaseColumns

All Known Subinterfaces:

Applications.ApplicationColumns, CalendarContract.ColorsColumns, ContactsContract.DataColumnsWithJoins, ContactsContract.SyncStateColumns, DrmStore.Audio, DrmStore.Columns, DrmStore.Images, MediaStore.Audio.AudioColumns, MediaStore.Files.FileColumns, MediaStore.Images.ImageColumns, MediaStore.MediaColumns, MediaStore.Video.VideoColumns, SyncStateContract.Columns, Telephony.BaseMmsColumns, Telephony.CanonicalAddressesColumns, Telephony.ThreadsColumns

All Known Implementing Classes:

Browser.BookmarkColumns, Browser.SearchColumns, BrowserContract.SyncState, CalendarContract.Attendees, CalendarContract.CalendarAlerts, CalendarContract.CalendarEntity, CalendarContract.CalendarMetaData, CalendarContract.Calendars, CalendarContract.Colors, CalendarContract.Events, CalendarContract.EventsEntity, CalendarContract.EventsRawTimes, CalendarContract.ExtendedProperties, CalendarContract.Instances, CalendarContract.Reminders, CalendarContract.SyncState, CallLog.Calls, Contacts.ContactMethods, Contacts.Extensions, Contacts.GroupMembership, Contacts.Groups, Contacts.Organizations, Contacts.People, Contacts.People.ContactMethods, Contacts.People.Extensions, Contacts.People.Phones, Contacts.Phones, Contacts.Photos, Contacts.Presence, Contacts.Settings, ContactsContract.AggregationExceptions, ContactsContract.CommonDataKinds.Callable, ContactsContract.CommonDataKinds.Email, ContactsContract.CommonDataKinds.Event, ContactsContract.CommonDataKinds.GroupMembership, ContactsContract.CommonDataKinds.Identity, ContactsContract.CommonDataKinds.Im, ContactsContract.CommonDataKinds.Nickname, ContactsContract.CommonDataKinds.Note, ContactsContract.CommonDataKinds.Organization, ContactsContract.CommonDataKinds.Phone, ContactsContract.CommonDataKinds.Photo, ContactsContract.CommonDataKinds.Relation, ContactsContract.CommonDataKinds.SipAddress, ContactsContract.CommonDataKinds.StructuredName, ContactsContract.CommonDataKinds.StructuredPostal, ContactsContract.CommonDataKinds.Website, ContactsContract.Contacts, ContactsContract.Contacts.AggregationSuggestions, ContactsContract.Contacts.Data, ContactsContract.Contacts.Entity, ContactsContract.Contacts.Photo, ContactsContract.Data, ContactsContract.Directory, ContactsContract.Groups, ContactsContract.PhoneLookup, ContactsContract.PhotoFiles, ContactsContract.Profile, ContactsContract.ProfileSyncState, ContactsContract.RawContacts, ContactsContract.RawContacts.Data, ContactsContract.RawContacts.Entity, ContactsContract.RawContacts.StreamItems, ContactsContract.RawContactsEntity, ContactsContract.StreamItemPhotos, ContactsContract.StreamItems, ContactsContract.StreamItems.StreamItemPhotos, ContactsContract.SyncState, Downloads.Impl, LiveFolders, MediaStore.Audio.Albums, MediaStore.Audio.Artists, MediaStore.Audio.Genres, MediaStore.Audio.Genres.Members, MediaStore.Audio.Media, MediaStore.Audio.Playlists, MediaStore.Audio.Playlists.Members, MediaStore.Images.Media, MediaStore.Images.Thumbnails, MediaStore.Video.Media, MediaStore.Video.Thumbnails, Settings.Bookmarks, Settings.Global, Settings.NameValueTable, Settings.Secure, Settings.System, SyncStateContract.Constants, Telephony.Carriers, Telephony.CellBroadcasts, Telephony.Mms, Telephony.Mms.Addr, Telephony.Mms.Draft, Telephony.Mms.Inbox, Telephony.Mms.Outbox, Telephony.Mms.Part, Telephony.Mms.Sent, Telephony.MmsSms, Telephony.MmsSms.PendingMessages, Telephony.Sms, Telephony.Sms.Conversations, Telephony.Sms.Draft, Telephony.Sms.Inbox, Telephony.Sms.Outbox, Telephony.Sms.Sent, Telephony.Threads, UserDictionary.Words, VoicemailContract.Status, VoicemailContract.Voicemails
```
public interface BaseColumns
```

- Field Summary
  
  Fields
  Modifier and Type Field and Description
  
  static String _COUNT
  The count of rows in a directory.
  
  static String _ID
  The unique ID for a row.

Fields
Modifier and Type	Field and Description
`static String`	`_COUNT` The count of rows in a directory.
`static String`	`_ID` The unique ID for a row.

- Field Detail
  - _ID
```
static final String _ID
```
    The unique ID for a row.
    Type: INTEGER (long)
    
    See Also:
    Constant Field Values
  - _COUNT
```
static final String _COUNT
```
    The count of rows in a directory.
    Type: INTEGER
    
    See Also:
    Constant Field Values

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IT. Expert System.

Android Reference

BaseColumns

Interface BaseColumns

Field Summary

Field Detail

_ID

_COUNT

Android Reference

Java basics

Java Enterprise Edition (EE)

Java Standard Edition (SE)

SQL

HTML

PHP

CSS

Java Script

MYSQL

JQUERY

VBS

REGEX

C

C++

C#

Design patterns

RFC (standard status)

RFC (proposed standard status)

RFC (draft standard status)

RFC (informational status)

RFC (experimental status)

RFC (best current practice status)

RFC (historic status)

RFC (unknown status)

IT dictionary