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SQL 2022-01-25 04:06:52
sqlite in flutter
// Get a location using getDatabasesPath var databasesPath = await getDatabasesPath(); String path = join(databasesPath, 'demo.db'); // Delete the database await deleteDatabase(path); // open the database Database database = await openDatabase(path, ver... Add solution -
SQL 2022-01-23 05:07:03
mysql trigger example
-- The following statement creates an AFTER UPDATE trigger on the sales table: DELIMITER $$ CREATE TRIGGER after_sales_update AFTER UPDATE ON sales FOR EACH ROW BEGIN IF OLD.quantity <> new.quantity THEN INSERT INTO SalesChanges(salesI... Add solution -
SQL 2022-01-22 19:25:22
learnxinyminutes sql
-- Comments start with two hyphens. End each command with a semicolon. -- SQL is not case-sensitive about keywords. The sample commands here -- follow the convention of spelling them in upper-case because it makes -- it easier to distinguish them from da... Add solution -
Other 2022-01-22 19:21:34
To ignore duplicate keys during 'copy from' in postgresql
create temp table tmp_table on commit drop as select * from brand with no data; copy tmp_table (name,slug) from '/var/lib/postgresql/data/Brands.csv' DELIMITER ',' csv header; insert into brand select distinct on (slug) * from tmp_table; Add solution -
SQL 2022-01-22 16:35:31
how to copy one table to other one in sql
Let’s assume that, we have our employee table. We have to copy this data into another table. For this purpose, we can use the INSERT INTO SELECT operator. Before we go ahead and do that, we would have to create another table that would have the same... Add solution