text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
for each of these rows. | 1,692.02 | 1.68 |
And more often than
not, you'll likely have | 1,693.7 | 2.25 |
a database or CSV that looks a bit
more like this without the primary key. | 1,695.95 | 4.92 |
But you'll still want to have a primary
key when you import into your database. | 1,700.87 | 4.84 |
So let's try working
with this kind of CSV now | 1,705.71 | 3.29 |
and having SQLite generate some
of the primary keys for us. | 1,709 | 3.87 |
Come back to my computer. | 1,712.87 | 1.86 |
And let's update our mfa.csv just to
remove those primary key column here. | 1,714.73 | 5.71 |
So I will open up again mfa.csv. | 1,720.44 | 4.46 |
And let me try to just delete
this column all together. | 1,724.9 | 2.7 |
I'll move [? id, ?] remove 1,
and 2, and 3, and 4, and 5. | 1,727.6 | 7.08 |
Let me save it, and now
that id column is gone. | 1,734.68 | 4.57 |
But now there's a problem. | 1,739.25 | 1.77 |
Like if I go to my schema,
and I type .schema, | 1,741.02 | 4.53 |
notice how there are four
columns in this table-- | 1,745.55 | 3.75 |
"id," "title," "accession_number,"
and "acquired." | 1,749.3 | 4.05 |
Well, now my CSV only has three columns. | 1,753.35 | 3.64 |
So if I try to import
this CSV into this table, | 1,756.99 | 3.53 |
I'm going to run into trouble, because
I have different numbers of columns | 1,760.52 | 3.21 |
[? between ?] my CSV and my table. | 1,763.73 | 3.025 |
Well, what can I do instead? | 1,766.755 | 2.375 |
It turns out that I could
actually import this data | 1,769.13 | 3.78 |
into a temporary table,
and then take that data | 1,772.91 | 3.57 |
and insert that data in that
temporary table into my real one | 1,776.48 | 3.57 |
called "collections" here. | 1,780.05 | 1.62 |
I can use both .import and INSERT
INTO to accomplish that task for me. | 1,781.67 | 6 |
So let's try this. | 1,787.67 | 1.14 |
I'll say .import. | 1,788.81 | 1.95 |
I want to import a CSV now-- [? dash ?]
[? dash ?] [? CSV. ?] Which one? | 1,790.76 | 4.23 |
Well, mfa.csv in this case. | 1,794.99 | 3.09 |
Now, though, I want to create a brand
new table that doesn't yet exist. | 1,798.08 | 3.822 |
So I'll type the name of the table. | 1,801.902 | 1.458 |
And I just call it temp for
now to temporarily import | 1,803.36 | 3.54 |
this data into a brand new table. | 1,806.9 | 2.49 |
And notice how here I'm not
using [? dash ?] [? dash ?] | 1,809.39 | 2.87 |
skip 1, because now I want to take
advantage of those header rows. | 1,812.26 | 4.09 |
SQLite, if I import into a new table,
will notice I have a header row | 1,816.35 | 6.46 |
and make my columns the very same
names that are in my header row-- | 1,822.81 | 4.79 |
title, accession number, and acquired. | 1,827.6 | 2.61 |
I don't want to skip them. | 1,830.21 | 1.17 |
I want SQLite to see them and create
this table using those header rows. | 1,831.38 | 5.23 |
So now, I'll hit Enter, and
nothing seems to happen. | 1,836.61 | 3.38 |
But if I type .schema, what do I see,
but a brand new table called "temp" | 1,839.99 | 5.01 |
that SQLite has just made automatically
and notice how it used that header row. | 1,845 | 4.05 |
I have "title," "accession_number,"
and "acquired" as my column names. | 1,849.05 | 5.745 |
OK, let's now look
inside the temp table, | 1,854.795 | 2.585 |
I'll say SELECT [? star ?]
FROM "temp" semicolon. | 1,857.38 | 5.14 |
And now, I see all that data in there. | 1,862.52 | 1.83 |
But I don't have primary keys yet. | 1,864.35 | 1.85 |
So my goal [? is ?] [? really ?]
to take all this data and insert it | 1,866.2 | 3.87 |
into my collections table to give it
that primary key I've been wanting | 1,870.07 | 4.56 |
here. | 1,874.63 | 0.72 |
Again, if I type SELECT [? star ?]
FROM "collections," well, nothing-- oh, | 1,875.35 | 5.648 |
something is still there. | 1,880.998 | 1.042 |
Let me actually just
delete this [INAUDIBLE] | 1,882.04 | 2.177 |
I'll say DELETE FROM "collections"
to remove it all together-- we'll | 1,884.217 | 2.833 |
[? get ?] [INAUDIBLE] just a minute. | 1,887.05 | 1.5 |
And now let me try, SELECT
[? star ?] FROM "collections," | 1,888.55 | 4.47 |
and I should see nothing
inside of collections. | 1,893.02 | 3.73 |
So what could I do? | 1,896.75 | 1.29 |
I could [? INSERT ?] [? INTO ?]
[? collections ?] using the data from | 1,898.04 | 3.59 |
my temp table. | 1,901.63 | 1.5 |
So I'll try that. | 1,903.13 | 0.85 |
I'll say INSERT INTO "collections"
and choose those columns yet again. | 1,903.98 | 5.48 |
I'll say the "title," and
the "accession_number," | 1,909.46 | 4.99 |
and now let's go for the
"acquired" column as well. | 1,914.45 | 4.45 |
I'll hit Enter. | 1,918.9 | 1.47 |
But instead of typing
many new lines of values, | 1,920.37 | 3.96 |
I actually have a way to dynamically
select all the values I want to insert, | 1,924.33 | 5.91 |
and it looks a bit like this. | 1,930.24 | 1.93 |
I could say INSERT INTO [? some ?]
table and some columns of that table. | 1,932.17 | 6.72 |
But I want to insert the results
of this SELECT down below. | 1,938.89 | 4.44 |
So I'll [? SELECT ?] some columns
[? FROM ?] some separate table. | 1,943.33 | 3.39 |
And so long as these columns align, I'll
be able to actually take the results | 1,946.72 | 5.13 |
of that [? SELECT ?] and [? insert ?]
all of them [? into ?] this new table | 1,951.85 | 3.33 |
using INSERT INTO. | 1,955.18 | 1.89 |
So let me finish my statement
here, we can see the results. | 1,957.07 | 2.85 |
Come back to my computer. | 1,959.92 | 2.13 |
And here, I'll type a SELECT to get
back all the items from my temp table. | 1,962.05 | 5.64 |
I'll say SELECT-- in
this case, SELECT, let's | 1,967.69 | 4.38 |
go for the "title" column,
the "accession_number" | 1,972.07 | 4.38 |
column, and the "acquired"
column from my "temp" table. | 1,976.45 | 4.65 |
Now, if I hit semicolon, I should see-- | 1,981.1 | 4.17 |
well, nothing at first. | 1,985.27 | 1.2 |
But if I type SELECT
[? star ?] FROM "collections," | 1,986.47 | 4.53 |
I see all my data now in there
selected from my temporary table. | 1,991 | 5.61 |
And now if I type
.schema, I still see temp. | 1,996.61 | 3.013 |
But what can I do now? | 1,999.623 | 0.917 |
I could just delete
that table altogether. | 2,000.54 | 2.17 |
I could say DROP TABLE "temp," as we
saw last week, semicolon, hit Enter, | 2,002.71 | 5.66 |
.schema again. | 2,008.37 | 1.72 |
And now, we're back where we
want to be with a single table, | 2,010.09 | 3.59 |
and now we've import our data
from our CSV with primary keys. | 2,013.68 | 5.35 |
If I type "collections" here,
we see it all in this table. | 2,019.03 | 5.62 |
OK, so we've seen several
versions of import, one | 2,024.65 | 3.54 |
to import into an existing table and
one to import into a brand new table. | 2,028.19 | 4.27 |
Let me ask then what questions we have
on how to use .import or how to insert | 2,032.46 | 6.08 |
more data into our database. | 2,038.54 | 4.7 |
Let's go [? Louise. ?] | 2,043.24 | 1.19 |
SPEAKER 6: Can we ask the
INSERT INTO command to place | 2,044.43 | 3.9 |
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