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............................................................... 33 10.1.3. zumero_internal_auth_create() ................................................................... 34 10.1.4. zumero_internal_auth_add_user() "zumero_register.h" sqlite3* db = NULL; sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, NULL); zumero_register(db); Alternatively, the Zumero client library may have been provided as 1. To create a Zumero table instead of a regular table, do this: CREATE VIRTUAL TABLE foo USING zumero (...); 2. To create indexes on a Zumero table, prefix the table name with 'z$': CREATE INDEX bar
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SQLite CREATE INDEX Statement: ........................................................ 21 SQLite CREATE UNIQUE INDEX Statement: .......................................... 21 SQLite CREATE TABLE Statement: ........................................ 22 SQLite CREATE TRIGGER Statement : .................................................. 22 SQLite CREATE VIEW Statement : ................................... ...................... 22 TUTORIALS POINT Simply Easy Learning SQLite CREATE VIRTUAL TABLE Statement: ........................................ 22 SQLite COMMIT TRANSACTION Statement: .....
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DB Browser for SQLite .............................................................. 10 Step 2: Create a New Database ................................................................................. client for SQLite is DB Browser for SQLite. This section has you install the client and use it to create an initial table. Step 1: Downloading DB Browser for SQLite Visit Website Go to https://sqlitebrowser Desktop Page 11 of 43 Step 2: Create a New Database The first thing you need to do after launching the application is create a SQLite database, which will house the tables and
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Statements are organized by their CRUD function on the table or database -
Create, Read, Update, or Delete.
CREATE CREATE a database sqlite3
.db This statement starts the sqlite3 commands) sqlite3 shelter.db CREATE a table CREATE TABLE ( , , ...); Create a table with the specified name containing containing column names of the specified data types. CREATE TABLE pets ( _id INTEGER, name TEXT, breed TEXT, gender INTEGER, weight INTEGER); INSERT data in a table INSERT INTO ( 0 码力 |
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http://www.sqlite.org SQL Refresher SQL Refresher: create table >sqlite3 database.db sqlite> create table student(id integer, name text); sqlite> .schema CREATE TABLE student(id integer, name text); Id name Lee 8 SQL Refresher: create another table create table takes
(id integer, course_id integer, grade integer);
sqlite>.schema CREATE TABLE student(id integer, name text); CREATE TABLE takes (id integer integer); id course_id grade 9 SQL Refresher: joining 2 tables More than one tables - joins E.g., create roster for this course (6242) id course_id grade 111 6242 100 222 6242 90 222 4000 80 id name
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org/src/file?filename=ext/misc/series. c). The "csv" extension loads the function csv() that can be used to create virtual tables, as available through the SQLite source code repository (https://sqlite.org/src/file the filename argument to mount CSV files from disk sql <- paste0( "CREATE VIRTUAL TABLE tbl USING ", "csv(data='1,2', schema='CREATE TABLE x(a INT, b INT)')" ) dbExecute(db, sql) dbGetQuery(db, "SELECT are two exceptions: • "" will create a temporary on-disk database. The file will be deleted when the connection is closed. • ":memory:" or "file::memory:" will create a temporary in-memory database.
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thumbnails files._id title … thumbnails._id width … 1 a 1 300 2 b NULL NULL 5 profile 3 600 Views
CREATE VIEW
AS
SELECT ….; A view is a virtual table based on other tables or views files images audio_meta video artists albums audio 31 Views in Media Provider CREATE VIEW IF NOT EXISTS audio AS
SELECT * FROM audio_meta
LEFT OUTER JOIN artists ON
artist_id=artists.artist_id
LEFT OUTER JOIN albums ON
audio_meta.album_id=albums.album_id; CREATE VIEW audio_meta AS
SELECT _id, , FROM files
WHERE media_type =; 0 码力 |
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B-tree 类型(table / index) name 表名 / 索引名 tbl_name 索引对应的表名 root_page B-tree 根节点 Page 号 sql CREATE TABLE / CREATE INDEX 语句 初始化流程 打开文件 读取 Salt,根据密钥生成 Key 解码 Page 1,读取 Header 解析 sqlite_master,生成 Schema
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用“sqlite3”后加文件名的方式打开数据库文件,如果指定文 件不存在,sqlite3在合适的时候(比如创建一个表时)自动创 建一个新文件。 创建表 create table test (id integer primary key, value text); 使用create table命令创建test表,表中有两个字段:id和value test表创建完成之后,打开文件资源管理器,你会发现test.db文件
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g sqlite3.OPEN_READONLY sqlite3.OPEN_READWRITE sqlite3.OPEN_CREATE D e f a u l t v a l u e : sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE callback ( op t i on a l ) : c a l l b a c k t o c a l l w h
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