2、这里引入了xm-select插件来实现多选,将多个栏目以1,2,3,4,5这样的形式进行保存; 3、Mysql实现就相对简单了,可以直接使用FIND_IN_SET函数直接就实现了; MySQL手册中find_in_set函数的语法解释: FIND_IN_SET(str,strlist) str要查询的字符串strlist字段名 参数以”,”分隔 如 (1,2,6,8,10,22) 查询...
@interface DBManager : NSObject { NSString *databasePath; } +(DBManager*)getSharedInstance; -(BOOL)createDB; -(BOOL) saveData:(NSString*)registerNumber name:(NSString*)name department:(NSString*)department year:(NSString*)year; -(NSArray*) findByRegisterNumber:(NSString*)registerNumber; ...
FindEditTable(String) 查找可编辑的第一个表的名称。 GetHashCode() 返回对象的哈希代码值。 (继承自 Object) Insert(String, String, ContentValues) 将行插入数据库中的便利方法。 InsertOrThrow(String, String, ContentValues) 将行插入数据库中的便利方法。 InsertWithOnConflict(String, String, ContentValu...
(delSql); }); } addTableName.ForEach(name => { List<string[]> fieldList = sqLiteHelp.FindTableField(name); string createTable = $"CREATE TABLE {name} ("; string pk = ""; foreach (string[] field in fieldList) { createTable += field[1]+$" `{field[2]}` "+ (field[3]....
@toc 1. 如何创建SQLite数据库 # 1. create database and table ''' sqlite3 内置模块，不需要安装 ''' import sqlite3 import os dbPath = 'data.sqlite' if not os.path.exists(dbPath): conn = sqlite3.connect(dbPath) c = conn.cursor() c.execute('''create table persons...
This version branch has dependency on v140 build toolset included by Visual Studio 2015 ref: litehelpers/Cordova-sqlite-storage#580 (UNTESTED and UNSUPPORTED WORKAROUND for Visual Studio 2017 is described at: https://developercommunity.visualstudio.com/content/problem/48806/cant-find-v140-in-visual-...
3)修改数据记录 update table_name set field1=val1, field2=val2 where expression; where是sql语句中用于条件判断的命令,expression为判断表达式 例,修改学生信息表学号为0001的数据记录: update student_info set stu_no=0001, name=hence where stu_no=0001; ...
sqlite3_vfs_find sqlite3_vfs_register sqlite3_vfs_unregister sqlite3_vmprintfchar❕Unnecessary sqlite3_vsnprintfchar❕Unnecessary sqlite3_vtab_collationsqlite3_index_info✅IndexInfoConstraint::collation sqlite3_vtab_configsqlite3✅VTabConnection ...
In fact, for the basics, as with so many things in the open source community, it’s already been done; navigate to switchonthecode.com/tutorials/csharp-tutorial-writing-a-dotnet-wrapper-for-sqlite, and we find a working set of P/Invoke declarations already laid down, shown in Figure 1...
MessageBox.Show("Unable to find database. Program will exit."); Environment.Exit(0); }else{ MessageBox.Show("Value already in database");//exception 19 if more need to be added}returnfalse; } dbConnection.Close();returntrue; }