3.6.2、表函数 sqlite3BtreeCreateTable: Creates anew, empty B-treeina database file.sqlite3BtreeDropTable: Destroys a B-treeina database file. sqlite3BtreeClearTable: Removes all datafroma B-tree, but keeps the B-tree intact. 3.6.3、游标函数(Cursor Functions) sqlite3BtreeCursor: Creates an...
1、创建数据库 CREATE TABLE Joyous_sqlite ( id INTEGER NOT NULL, create_time TIMESTAMP NOT NULL DEFAULT current_timestamp..., poster VARCHAR(50) NOT NULL, CONSTRAINT Joyous_sqlite_pk PRIMARY KEY (id) ); 插入语句 insert into Joyous_sqlite...(id,poster) values (1, ‘Joyous’); 这样查询...
zero-configuration,transactionalSQL database engine. The code for SQLite is in thepublic domainand is thus free for use for any purpose, commercial or private. SQLite is themost widely deployeddatabase in the world with more applications than we can count, including severalhigh-profile projects....
*/ unsigned int prepFlags, /* Zero or more SQLITE_PREPARE_ flags */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const char **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int sqlite3_prepare16( sqlite3 *db, /* Database handle */ const void *zS...
CREATETABLEIFNOTEXISTSapp_access_table(_idINTEGERPRIMARYKEYAUTOINCREMENT,app_nameTEXTUNIQUE,access_timeLONGDEFAULT10000,access_countINTEGERCHECK(access_count>0)) 在数据插入时使用insertWithOnConflict来决定冲突时,该如何处理,此处使用SQLiteDatabase.CONFLICT_REPLACE来决定数据冲突时,替换该条数据 ...
awaitdb.exec('CREATE TABLE tbl (col TEXT)')awaitdb.exec('INSERT INTO tbl VALUES ("test")') Getting a single row constresult=awaitdb.get('SELECT col FROM tbl WHERE col = ?','test')// { col: 'test' } constresult=awaitdb.get('SELECT col FROM tbl WHERE col = ?',['test'])/...
create table 表名 (字段名 字段类型 约束条件…)例如创建books图书表，包括图书编号bookid、图书名称bookname、价格price、图书日期bookdate等字段。代码如下所示：create table books(bookid int primary key, bookname varchar(20), price float, bookdate date);其中创建的表名称为books，图书编号为int...
* 零组态设定(Zero-configuration),无须管理者的设定及管理。 * 支持大部分SQL92的语法。 * 数据库存在于一个单一的文件中。 * 数据库系统所在机器的字节顺序(Byte order)无关。 * 支援大小至2 TB (2^41 bytes)。 * 极小的内存需求:小于3万行的C语言程序代码。小于250KB的程序空间。
CREATE TABLE school ( ID INTEGER PRIMARY KEY, school_name TEXT, school_address TEXT...
int sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n); int sqlite3_bind_zeroblob64(sqlite3_stmt*, int, sqlite3_uint64); int sqlite3_bind_double(sqlite3_stmt*, int, double); int sqlite3_bind_int(sqlite3_stmt*, int, int); ...