实际上,sqlite3 工具支持多种输出格式,默认为list模式。 以下是可用的输出格式:ascii、box、csv、column、html、insert、json、line、list、markdown、quote、table。 可以使用.mode命令更改输出格式。 Box 格式: sqlite>.mode box sqlite>select*fromuser; ┌──────────┬─────┐ │ name │ a...
CREATE OR REPLACE VIEW view_name AS SELECT column_name(s) FROM table_name WHERE condition 1. 2. 3. 4. 5. 现在,我们希望向 "Current Product List" 视图添加 "Category" 列。我们将通过下列 SQL 更新视图: CREATE VIEW [Current Product List] AS SELECT ProductID,ProductName,Category FROM Products...
The format of derived names is not defined by the SQL standard and may change from one release of SQLite to another. If an application depends on explicit column names, it should always use AS clauses in the select header. Returned pointers will remain valid until sqlite3_finalize() is ...
List names of tables matching a LIKE pattern(查看数据库的表列表) .timeout MS Try opening locked tables for MS milliseconds(在 MS 时间内尝试打开被锁定的表) .width NUM NUM ... Set column widths for "column" mode(设置 column 模式中的列的宽度) .timer ON|OFF (显示CPU时间) .vfsname ?AUX?
SQLite 的视图是使用CREATE VIEW语句创建的。SQLite 视图可以从一个单一的表、多个表或其他视图创建。 CREATE VIEW 的基本语法如下: CREATE [TEMP | TEMPORARY] VIEW view_name AS SELECT column1, column2... FROM table_name WHERE [condition]; 您可以...
sqlite>.help.databases List names and filesofattached databases.dbconfig?op??val?List or changesqlite3_db_config()options.dbinfo?DB?Show status information about the database.excel Display the outputofnext commandinspreadsheet.exit?CODE?Exitthisprogramwithreturn-codeCODE.expertEXPERIMENTAL.Suggest inde...
[Android.Runtime.Register("getColumnNames", "()[Ljava/lang/String;", "GetGetColumnNamesHandler")] public override string[]? GetColumnNames (); 傳回 String[] 屬性 RegisterAttribute 備註 此頁面的部分是根據 Android 開放原始碼專案所建立和共用的工作進行修改,並根據 Creative Commo...
QuerySQLite databases and view results in a table (also supports dot commands like.tables,.schema, ecc). Exportquery results tojson,csvandhtml. Sidebar explorer: list databases, tables, views and columns. Autocompletionfor SQLite keywords, table and views names, column names (autocompletion is ...
In SQLite, you cannot just doALTER TABLE table RENAME COLUMN old_column TO new_column;.As of SQLite version 3.25.0, you can. In our example, we have a tableblogin a file calledblog.sqlite3. This is the database schema of the tableblog: ...
ForSqliteHasColumnName<TProperty>(PropertyBuilder<TProperty>, String) 設定以 SQLite 為目標時,屬性所對應的資料行。 C# 複製 public static Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder<TProperty> ForSqliteHasColumnName<TProperty> (this Microsoft.EntityFram...