=err{fmt.Println(err)}stmt,_:=database.Prepare("create table if not exists user(id integer primary key, firstname text, lastname text)")stmt.Exec()stmt,_=database.Prepare("insert into user( firstname, lastname) values(?,?)")stmt.Exec("Jack","Chen")varid intvarfirstname stringvarla...
("column_value = %s \t column_name = %s\n",column_value[i],column_name[i]); } return 0; } int main(int argc, char const *argv[]) { sqlite3 *db; int ret = 0; char *sql; char *zErrMsg = 0; const char *test = "Sqlite3 database learning"; if ((ret = sqlite3_open(...
}//Unicode 转 Utf8std::stringUnicode2Utf8(conststd::wstring&widestring){usingnamespacestd;intutf8size = ::WideCharToMultiByte(CP_UTF8,0, widestring.c_str(), -1, NULL,0, NULL, NULL);if(utf8size ==0) {throwstd::exception("Error in conversion."); } std::vector<char>resultstring(utf...
updated, or deleted row in the DataSet.//////<remarks>///e.g.:///UpdateDataset(conn, insertCommand, deleteCommand, updateCommand, dataSet, "Order");///</remarks>///A valid SQL statement to insert new records into the data source///A valid SQL statement to delete records from the da...
There is no C bindings or node-gyp compilation here, sql.js is a simple javascript file, that can be used like any traditional javascript library. If you are building a native application in javascript (using Electron for instance), or are working in node.js, you will likely prefer to us...
若在命令中使用可选的IF NOT EXISTS子句且存在同名的另一个表,则当前的命令无效。 删除表可以使用DROP TABLE 语句。 CREATE TRIGGER sql-statement::= CREATE[TEMP|TEMPORARY]TRIGGERtrigger-name[BEFORE|AFTER] database-eventON[database-name.]table-name ...
create view view_name as select_statement; 3. 删除视图: drop view view_name; 六、Select语句 1. select语句概述: select语句是SQL语言中最复杂的语句,也是最重要的语句,是SQL语言的核心。 select语句由select和一系列子句组合而成。 select语句允许嵌套。即一条select语句的输出,作为另一条语句的输入。
create_users_table = """ CREATE TABLE IF NOT EXISTS users ( id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, age INTEGER, gender TEXT, nationality TEXT ); """ 通过此语句,将创建users数据库表,其中包括的字段有:id, name, age, gender, nationality,然后用下面的方式,调用函数: 代码语...
Java documentation forandroid.database.sqlite.SQLiteStatement. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...
statement.setQueryTimeout(30);// set timeout to 30 sec.statement.executeUpdate("drop table if exists person"); statement.executeUpdate("create table person (id integer, name string)"); statement.executeUpdate("insert into person values(1, 'leo')"); ...