SQLite has some pretty neat features, like this one which retrieves a list of field names (incl. type, not null, default value, etc) or nothing (when the table does not exist): PRAGMA table_info('tablename'); Example: Attachment : image.png ReplyQuote Topic...
MySQL 是一个开源关系数据库管理系统，广泛用于存储、管理和组织数据。使用 MySQL 表时，通常需要将多个...
List namesoftables IfTABLEspecified,only list tables matchingLIKEpatternTABLE.sqlite> 直接导出csv文件 代码语言:javascript 复制 sqlite3-csv-header vz3.db"select * from t_city_domestic_all_new">city.csv 参考:https://blog.csdn.net/kevin_weijc/article/details/78920593 https://blog.csdn.net/u013...
.import FILE TABLE Import data from FILE into TABLE(从文件中导入表) .indices TABLE Show names of all indices on TABLE(显示索引) .load FILE ?ENTRY? Load an extension library(加载一个扩展库) .mode MODE ?TABLE? Set output mode where MODE is one of: (设置输出模式, 模式可以是以下几种): ...
Compile the SQL needed to retrieve all table names. string compileGetAllViews() deprecated Compile the SQL needed to retrieve all view names. string compileColumnListing(string $table) deprecated Compile the query to determine the list of columns. string compileColumns(string $table) Compi...
.tables ?TABLE? List names of tables matching LIKE pattern TABLE ... sqlite3 只是读取输入行信息,然后传递给 SQLite 库来执行,SQL 语句都要以分号;结尾才会开始执行,因此你可以自由的分行输入。 在sqlite3 中,SQL 语句需以分号;结尾才会执行,允许跨行输入。特殊的点命令(如.help和.tables)以小数点.开头...
usingSQLite;usingSystem.ComponentModel;namespaceLocalDataAccess{ [Table("Customers") public class Customer: INotifyPropertyChanged { private int _id; [PrimaryKey, AutoIncrement]publicintId {get{return_id; }set{this._id =value; OnPropertyChanged(nameof(Id)); } }privatestring_companyName; [NotNull...
Thekeywordhash.hheader file contains the definition of a hash table that maps SQL language keywords (ex: "CREATE", "SELECT", "INDEX", etc.) into the numeric codes used by the parse.c parser. The keywordhash.h file is generated by a C-language program at tool mkkeywordhash.c. ...
This SQL command returns a table that shows all the columns in the table and details their type, primary key status, NOT NULL status, and default value. Get Column Names Using PRAGMA_TABLE_INFO Apart from the PRAGMA command mentioned above, we can use a PRAGMA method, namely, PRAGMA_TABLE...
It also allows you to specify table names and column names explicitly no matter how your classes actually named. Take a look at example:struct User{ int id; std::string firstName; std::string lastName; int birthDate; std::unique_ptr<std::string> imageUrl; int typeId; }; struct User...