SQLiteDatabase.Query Method
Definition
Important
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Overloads
Query(Boolean, String, String[], String, String[], String, String, String, String, CancellationSignal) |
Query the given URL, returning a |
Query(Boolean, String, String[], String, String[], String, String, String, String) |
Query the given URL, returning a |
Query(String, String[], String, String[], String, String, String, String) |
Query the given table, returning a |
Query(String, String[], String, String[], String, String, String) |
Query the given table, returning a |
Query(Boolean, String, String[], String, String[], String, String, String, String, CancellationSignal)
Query the given URL, returning a Cursor
over the result set.
[Android.Runtime.Register("query", "(ZLjava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Landroid/os/CancellationSignal;)Landroid/database/Cursor;", "GetQuery_ZLjava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Landroid_os_CancellationSignal_Handler")]
public virtual Android.Database.ICursor? Query (bool distinct, string? table, string[]? columns, string? selection, string[]? selectionArgs, string? groupBy, string? having, string? orderBy, string? limit, Android.OS.CancellationSignal? cancellationSignal);
[<Android.Runtime.Register("query", "(ZLjava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Landroid/os/CancellationSignal;)Landroid/database/Cursor;", "GetQuery_ZLjava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Landroid_os_CancellationSignal_Handler")>]
abstract member Query : bool * string * string[] * string * string[] * string * string * string * string * Android.OS.CancellationSignal -> Android.Database.ICursor
override this.Query : bool * string * string[] * string * string[] * string * string * string * string * Android.OS.CancellationSignal -> Android.Database.ICursor
Parameters
- distinct
- Boolean
true if you want each row to be unique, false otherwise.
- table
- String
The table name to compile the query against.
- columns
- String[]
A list of which columns to return. Passing null will return all columns, which is discouraged to prevent reading data from storage that isn't going to be used.
- selection
- String
A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will return all rows for the given table.
- selectionArgs
- String[]
You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. The values will be bound as Strings.
- groupBy
- String
A filter declaring how to group rows, formatted as an SQL GROUP BY clause (excluding the GROUP BY itself). Passing null will cause the rows to not be grouped.
- having
- String
A filter declare which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used.
- orderBy
- String
How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
- limit
- String
Limits the number of rows returned by the query, formatted as LIMIT clause. Passing null denotes no LIMIT clause.
- cancellationSignal
- CancellationSignal
A signal to cancel the operation in progress, or null if none.
If the operation is canceled, then OperationCanceledException
will be thrown
when the query is executed.
Returns
A Cursor
object, which is positioned before the first entry. Note that
Cursor
s are not synchronized, see the documentation for more details.
- Attributes
Remarks
Query the given URL, returning a Cursor
over the result set.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
See also
Applies to
Query(Boolean, String, String[], String, String[], String, String, String, String)
Query the given URL, returning a Cursor
over the result set.
[Android.Runtime.Register("query", "(ZLjava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_ZLjava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")]
public virtual Android.Database.ICursor? Query (bool distinct, string? table, string[]? columns, string? selection, string[]? selectionArgs, string? groupBy, string? having, string? orderBy, string? limit);
[<Android.Runtime.Register("query", "(ZLjava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_ZLjava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")>]
abstract member Query : bool * string * string[] * string * string[] * string * string * string * string -> Android.Database.ICursor
override this.Query : bool * string * string[] * string * string[] * string * string * string * string -> Android.Database.ICursor
Parameters
- distinct
- Boolean
true if you want each row to be unique, false otherwise.
- table
- String
The table name to compile the query against.
- columns
- String[]
A list of which columns to return. Passing null will return all columns, which is discouraged to prevent reading data from storage that isn't going to be used.
- selection
- String
A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will return all rows for the given table.
- selectionArgs
- String[]
You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. The values will be bound as Strings.
- groupBy
- String
A filter declaring how to group rows, formatted as an SQL GROUP BY clause (excluding the GROUP BY itself). Passing null will cause the rows to not be grouped.
- having
- String
A filter declare which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used.
- orderBy
- String
How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
- limit
- String
Limits the number of rows returned by the query, formatted as LIMIT clause. Passing null denotes no LIMIT clause.
Returns
A Cursor
object, which is positioned before the first entry. Note that
Cursor
s are not synchronized, see the documentation for more details.
- Attributes
Remarks
Query the given URL, returning a Cursor
over the result set.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
See also
Applies to
Query(String, String[], String, String[], String, String, String, String)
Query the given table, returning a Cursor
over the result set.
[Android.Runtime.Register("query", "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")]
public virtual Android.Database.ICursor? Query (string? table, string[]? columns, string? selection, string[]? selectionArgs, string? groupBy, string? having, string? orderBy, string? limit);
[<Android.Runtime.Register("query", "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")>]
abstract member Query : string * string[] * string * string[] * string * string * string * string -> Android.Database.ICursor
override this.Query : string * string[] * string * string[] * string * string * string * string -> Android.Database.ICursor
Parameters
- table
- String
The table name to compile the query against.
- columns
- String[]
A list of which columns to return. Passing null will return all columns, which is discouraged to prevent reading data from storage that isn't going to be used.
- selection
- String
A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will return all rows for the given table.
- selectionArgs
- String[]
You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. The values will be bound as Strings.
- groupBy
- String
A filter declaring how to group rows, formatted as an SQL GROUP BY clause (excluding the GROUP BY itself). Passing null will cause the rows to not be grouped.
- having
- String
A filter declare which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used.
- orderBy
- String
How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
- limit
- String
Limits the number of rows returned by the query, formatted as LIMIT clause. Passing null denotes no LIMIT clause.
Returns
A Cursor
object, which is positioned before the first entry. Note that
Cursor
s are not synchronized, see the documentation for more details.
- Attributes
Remarks
Query the given table, returning a Cursor
over the result set.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
See also
Applies to
Query(String, String[], String, String[], String, String, String)
Query the given table, returning a Cursor
over the result set.
[Android.Runtime.Register("query", "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")]
public virtual Android.Database.ICursor? Query (string? table, string[]? columns, string? selection, string[]? selectionArgs, string? groupBy, string? having, string? orderBy);
[<Android.Runtime.Register("query", "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Landroid/database/Cursor;", "GetQuery_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_arrayLjava_lang_String_Ljava_lang_String_Ljava_lang_String_Ljava_lang_String_Handler")>]
abstract member Query : string * string[] * string * string[] * string * string * string -> Android.Database.ICursor
override this.Query : string * string[] * string * string[] * string * string * string -> Android.Database.ICursor
Parameters
- table
- String
The table name to compile the query against.
- columns
- String[]
A list of which columns to return. Passing null will return all columns, which is discouraged to prevent reading data from storage that isn't going to be used.
- selection
- String
A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will return all rows for the given table.
- selectionArgs
- String[]
You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. The values will be bound as Strings.
- groupBy
- String
A filter declaring how to group rows, formatted as an SQL GROUP BY clause (excluding the GROUP BY itself). Passing null will cause the rows to not be grouped.
- having
- String
A filter declare which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used.
- orderBy
- String
How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
Returns
A Cursor
object, which is positioned before the first entry. Note that
Cursor
s are not synchronized, see the documentation for more details.
- Attributes
Remarks
Query the given table, returning a Cursor
over the result set.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.