[SCREENSHOT – LONG CLICK] By long pressing on record you can Delete or Update record.
Rather than executing a whole query at once, it is possible to set up a cursor that encapsulates the query, and then read the query result a few rows at a time.
One reason for doing this is to avoid memory overrun when the result contains a large number of rows.
Read on for the results and a couple of suprises thrown in. Fortunately one of the applications I work with has a 13 million row lookup table that I frequently use for this type of activity. The structure looks like this: There is a unique index on RATE_PFX, RATE_ID, ZIP_AREA and EFF_DT. My tests consisted of looping through a subset of approximately 1,000 rows in the middle of the table.
Basically I was asking the table for all rates for a given RATE_PFX and RATE_ID.
FETCH NEXT FROM cur Vendor INTO @Vendor ID, @Vendor Name END CLOSE cur Vendor DEALLOCATE cur Vendor Kalman Toth - Database, Data Warehouse & Business Intelligence Architect SQLUSA: The Best SQL Server 2005 Training in the World! Follow this pattern: SET NOCOUNT ON DECLARE @Vendor ID int, @Vendor Name nvarchar(50), @message varchar(80), @product nvarchar(50) PRINT '-------- Vendor Products Report --------' DECLARE cur Vendor CURSOR FOR SELECT Vendor ID, Name FROM Purchasing.
Vendor WHERE Preferred Vendor Status = 1 ORDER BY Vendor ID OPEN cur Vendor FETCH NEXT FROM cur Vendor INTO @Vendor ID, @Vendor Name WHILE @@FETCH_STATUS = 0 BEGIN PRINT ' ' SELECT @message = '----- Products From Vendor: ' @Vendor Name PRINT @message -- DO PROCESSING HERE -- Get the next vendor.
When there are no contacts, we are showing the “No Records” and when user inserts the data, we hide that section.
Layout 3: table_This xml file for two DML (Data Manipulation Language – used for insert/ update/ delete queries) statements of SQLite Database i.e. Here, we have two fieds: public class SQLite Helper extends SQLite Open Helper We are creating a java file called SQLite Helper and extending SQLite Open Helper class and It is used to create a bridge between android and SQLite.
What is SQLite: In Android, SQLite is used as database.