Whether to use mixed case (0), upper case (1) or lower case (2) hash indexes. This option is primarily useful when you need compatibility with other database systems, where the names of the columns are always returned as uppercase or lowercase, regardless of the case of the actual field...
Page Life Expectancy: Number of seconds a page will stay in the buffer pool without being used. The greater the life expenctancy, the greater the change that SQL Server will be able to get a page from memory instead of having to read it from disk. Buffer cache hit ratio: Percentage of...
map.TableName + "_" + c.Name; IndexInfo iinfo; if (!indexes.TryGetValue(iname, out iinfo)) { iinfo = new IndexInfo { IndexName = iname, TableName = map.TableName, Unique = i.Unique, Columns = new List<IndexedColumn>() }; indexes.Add(iname, iinfo); } if (i.Unique != ii...
List orders = customer.getOrders(); 1. 查询/更新ToMany关联关系 ToMany关联的查询都会被延迟加载,并在被首次调用时加载并缓存实体类到一个List,之后再次调用get方法就不再请求数据库了。由于被关联的实体类列表是被缓存的,当被关联的实体类在数据库中新增时,这个缓存并不会更新,所以更新ToMany关系需要一些额外...
These APIs are exposed as methods of a special field-type, JSONField.To access or modify specific object keys or array indexes in a JSON structure, you can treat the JSONField as if it were a dictionary/list.Parameters json_dumps –(optional) function for serializing data to JSON strings....
[Database Statistics] Supports show size of each table’s indexes. The feature Database Statistics may help you get more insight about your SQLite databases’ data storage information, which may let you see if there’re any chances to let SQLite working in a more effective way in your devi...
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2) Add a dict for each field, which gives you a list of indexes intothe above structure, for each unique valueexample (simplified) structure:lookups = {'line': {123: [0,1,2], 124: [3,4,5]... etc}'KC': {12: [0,4,6], 13: [7,8,9]...etc}'VC': {14: [0,3,4],...
ADDED: #3013 When double clicking on empty space in list of indexes or tables (in table or view window) the action is not ignored, but a dialog opens for adding new item. CHANGE: DbAndroid plugin has now JAR file embedded and you can get it from Tools menu. CHANGE: SQLite version up...
Q10: I am trying to get this SQL command to work in the Execute SQL block. INSERT userlist FROM /storage/emulated/0/etfiles/upload.txt. What I am trying to do is upload a file into the userlist table of the sqlite database.The upload.txt file would look something like this: 100 ...