Difference between revisions of "User:Dt192"
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Line 98: | Line 98: | ||
end | end | ||
− | local query = [[ | + | local query = [[SELECT id,city,name FROM mySheet WHERE id > 1 AND id < 5]] |
for id,city,name in rows(conn, query) do | for id,city,name in rows(conn, query) do | ||
print (name, city, id) | print (name, city, id) |
Revision as of 17:03, 30 January 2024
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So i don't forget again. This is how you sent raw sql to the db and fetch the result
mydb = db:create("mydb",
{
mySheet = {
name = "", id = 0, city = "",
_index = { "name" },
_unique = { "id" },
_violations = "FAIL"
}
})
myData = {
{name="Ixokai", city="Magnagora", id=1},
{name="Vadi", city="New Celest", id=2},
{name="Heiko", city="Hallifax", id=3},
{name="Keneanung", city="Hashan", id=4},
{name="Carmain", city="Mhaldor", id=5},
{name="Ixokai", city="Hallifax", id=6},
}
db:add(mydb.mySheet, unpack(myData))
local conn = db.__conn.mydb;
---------------------------------------------------------------------------------------
res = conn:execute("SELECT last_insert_rowid()")
display(res:fetch())
results:close()
----------------------------------------------------------------------------------------
results = conn:execute([[SELECT city,name FROM mySheet WHERE city = 'Hallifax']])
local city,name = results:fetch()
while city do
print(city,name)
city,name = results:fetch()
end
results:close()
----------------------------------------------------------------------------------------
results = conn:execute[[
SELECT * FROM mySheet WHERE name = 'Ixokai'
]]
local res = results:fetch({}, "a")
while res do
print(res.id, res.city, res.name)
res = results:fetch(res, "a")
end
results:close()
----------------------------------------------------------------------------------------
function rows(connection, sql_statement)
local cursor = assert (connection:execute (sql_statement))
return function()
return cursor:fetch()
end
end
local query = [[SELECT id,city,name FROM mySheet WHERE id > 1 AND id < 5]]
for id,city,name in rows(conn, query) do
print (name, city, id)
end