How to insert CSV data into an SQLite table via a shell pipe?
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I have written a program that outputs the result to the standard output in strict pure CSV form (every line represents a single record and contain the same set of comma-separated fields, fields only contain lowercase English letters, numbers and dots, no spaces, no quotes and no symbols that might need to be escaped/encoded).
How do I redirect this output into an SQLite table that it fits into perfectly?
It would be great if I could control whether I want constraint-breaking (e.g. having the same primary/secondary key as the records already in the table) replace existing records or be discarded silently.
Of course I might build direct SQLite database output support in the program itself but I would prefer going the unix-way if possible.
shell pipe csv csv-simple sqlite
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up vote
1
down vote
favorite
I have written a program that outputs the result to the standard output in strict pure CSV form (every line represents a single record and contain the same set of comma-separated fields, fields only contain lowercase English letters, numbers and dots, no spaces, no quotes and no symbols that might need to be escaped/encoded).
How do I redirect this output into an SQLite table that it fits into perfectly?
It would be great if I could control whether I want constraint-breaking (e.g. having the same primary/secondary key as the records already in the table) replace existing records or be discarded silently.
Of course I might build direct SQLite database output support in the program itself but I would prefer going the unix-way if possible.
shell pipe csv csv-simple sqlite
Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I have written a program that outputs the result to the standard output in strict pure CSV form (every line represents a single record and contain the same set of comma-separated fields, fields only contain lowercase English letters, numbers and dots, no spaces, no quotes and no symbols that might need to be escaped/encoded).
How do I redirect this output into an SQLite table that it fits into perfectly?
It would be great if I could control whether I want constraint-breaking (e.g. having the same primary/secondary key as the records already in the table) replace existing records or be discarded silently.
Of course I might build direct SQLite database output support in the program itself but I would prefer going the unix-way if possible.
shell pipe csv csv-simple sqlite
I have written a program that outputs the result to the standard output in strict pure CSV form (every line represents a single record and contain the same set of comma-separated fields, fields only contain lowercase English letters, numbers and dots, no spaces, no quotes and no symbols that might need to be escaped/encoded).
How do I redirect this output into an SQLite table that it fits into perfectly?
It would be great if I could control whether I want constraint-breaking (e.g. having the same primary/secondary key as the records already in the table) replace existing records or be discarded silently.
Of course I might build direct SQLite database output support in the program itself but I would prefer going the unix-way if possible.
shell pipe csv csv-simple sqlite
edited Feb 16 at 10:14
asked Feb 16 at 8:36
Ivan
5,484176297
5,484176297
Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14
add a comment |Â
Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14
Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
2
down vote
Two approaches:
Sample test.csv
file:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
Liberty Elementary Teachers,Elem Teachers,13559,103
1st Grade Teachers,1stgrade,,104
2nd Grade Teachers,2nsgrade,13561,105
3rd Grade Teachers,3rdgrade,13562,106
Guidance Department,guidance,,107
1) With csvkit (a suite of command-line tools for converting to and working with CSV)
Import into sqlite3 database:
csvsql --db sqlite:///test_db --tables test_tbl --insert test.csv
If no input csv file was specified it'll accept csv data from stdin:
... | csvsql --db sqlite:///test_db --tables test_tbl --insert
To extract data from sqlite database:
sql2csv --db sqlite:///test_db --query 'select * from test_tbl limit 3'
The output:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
2) With sqlite3 command-line tool (allows the user to manually enter and execute SQL statements against an SQLite database)
Use the "
.import
" command to import CSV (comma separated value) data
into an SQLite table. The ".import
" command takes two arguments which
are the name of the disk file from which CSV data is to be read and
the name of the SQLite table into which the CSV data is to be
inserted.
Note that it is important to set the "mode" to "csv" before running
the ".import
" command. This is necessary to prevent the command-line
shell from trying to interpret the input file text as some other
format.
$ sqlite3
sqlite> .mode csv
sqlite> .import test.csv test_tbl
sqlite> select GroupName,Groupcode from test_tbl limit 5;
"System Administrators",sysadmin
"Independence High Teachers","HS Teachers"
"John Glenn Middle Teachers","MS Teachers"
"Liberty Elementary Teachers","Elem Teachers"
"1st Grade Teachers",1stgrade
sqlite>
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
Two approaches:
Sample test.csv
file:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
Liberty Elementary Teachers,Elem Teachers,13559,103
1st Grade Teachers,1stgrade,,104
2nd Grade Teachers,2nsgrade,13561,105
3rd Grade Teachers,3rdgrade,13562,106
Guidance Department,guidance,,107
1) With csvkit (a suite of command-line tools for converting to and working with CSV)
Import into sqlite3 database:
csvsql --db sqlite:///test_db --tables test_tbl --insert test.csv
If no input csv file was specified it'll accept csv data from stdin:
... | csvsql --db sqlite:///test_db --tables test_tbl --insert
To extract data from sqlite database:
sql2csv --db sqlite:///test_db --query 'select * from test_tbl limit 3'
The output:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
2) With sqlite3 command-line tool (allows the user to manually enter and execute SQL statements against an SQLite database)
Use the "
.import
" command to import CSV (comma separated value) data
into an SQLite table. The ".import
" command takes two arguments which
are the name of the disk file from which CSV data is to be read and
the name of the SQLite table into which the CSV data is to be
inserted.
Note that it is important to set the "mode" to "csv" before running
the ".import
" command. This is necessary to prevent the command-line
shell from trying to interpret the input file text as some other
format.
$ sqlite3
sqlite> .mode csv
sqlite> .import test.csv test_tbl
sqlite> select GroupName,Groupcode from test_tbl limit 5;
"System Administrators",sysadmin
"Independence High Teachers","HS Teachers"
"John Glenn Middle Teachers","MS Teachers"
"Liberty Elementary Teachers","Elem Teachers"
"1st Grade Teachers",1stgrade
sqlite>
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
add a comment |Â
up vote
2
down vote
Two approaches:
Sample test.csv
file:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
Liberty Elementary Teachers,Elem Teachers,13559,103
1st Grade Teachers,1stgrade,,104
2nd Grade Teachers,2nsgrade,13561,105
3rd Grade Teachers,3rdgrade,13562,106
Guidance Department,guidance,,107
1) With csvkit (a suite of command-line tools for converting to and working with CSV)
Import into sqlite3 database:
csvsql --db sqlite:///test_db --tables test_tbl --insert test.csv
If no input csv file was specified it'll accept csv data from stdin:
... | csvsql --db sqlite:///test_db --tables test_tbl --insert
To extract data from sqlite database:
sql2csv --db sqlite:///test_db --query 'select * from test_tbl limit 3'
The output:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
2) With sqlite3 command-line tool (allows the user to manually enter and execute SQL statements against an SQLite database)
Use the "
.import
" command to import CSV (comma separated value) data
into an SQLite table. The ".import
" command takes two arguments which
are the name of the disk file from which CSV data is to be read and
the name of the SQLite table into which the CSV data is to be
inserted.
Note that it is important to set the "mode" to "csv" before running
the ".import
" command. This is necessary to prevent the command-line
shell from trying to interpret the input file text as some other
format.
$ sqlite3
sqlite> .mode csv
sqlite> .import test.csv test_tbl
sqlite> select GroupName,Groupcode from test_tbl limit 5;
"System Administrators",sysadmin
"Independence High Teachers","HS Teachers"
"John Glenn Middle Teachers","MS Teachers"
"Liberty Elementary Teachers","Elem Teachers"
"1st Grade Teachers",1stgrade
sqlite>
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Two approaches:
Sample test.csv
file:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
Liberty Elementary Teachers,Elem Teachers,13559,103
1st Grade Teachers,1stgrade,,104
2nd Grade Teachers,2nsgrade,13561,105
3rd Grade Teachers,3rdgrade,13562,106
Guidance Department,guidance,,107
1) With csvkit (a suite of command-line tools for converting to and working with CSV)
Import into sqlite3 database:
csvsql --db sqlite:///test_db --tables test_tbl --insert test.csv
If no input csv file was specified it'll accept csv data from stdin:
... | csvsql --db sqlite:///test_db --tables test_tbl --insert
To extract data from sqlite database:
sql2csv --db sqlite:///test_db --query 'select * from test_tbl limit 3'
The output:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
2) With sqlite3 command-line tool (allows the user to manually enter and execute SQL statements against an SQLite database)
Use the "
.import
" command to import CSV (comma separated value) data
into an SQLite table. The ".import
" command takes two arguments which
are the name of the disk file from which CSV data is to be read and
the name of the SQLite table into which the CSV data is to be
inserted.
Note that it is important to set the "mode" to "csv" before running
the ".import
" command. This is necessary to prevent the command-line
shell from trying to interpret the input file text as some other
format.
$ sqlite3
sqlite> .mode csv
sqlite> .import test.csv test_tbl
sqlite> select GroupName,Groupcode from test_tbl limit 5;
"System Administrators",sysadmin
"Independence High Teachers","HS Teachers"
"John Glenn Middle Teachers","MS Teachers"
"Liberty Elementary Teachers","Elem Teachers"
"1st Grade Teachers",1stgrade
sqlite>
Two approaches:
Sample test.csv
file:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
Liberty Elementary Teachers,Elem Teachers,13559,103
1st Grade Teachers,1stgrade,,104
2nd Grade Teachers,2nsgrade,13561,105
3rd Grade Teachers,3rdgrade,13562,106
Guidance Department,guidance,,107
1) With csvkit (a suite of command-line tools for converting to and working with CSV)
Import into sqlite3 database:
csvsql --db sqlite:///test_db --tables test_tbl --insert test.csv
If no input csv file was specified it'll accept csv data from stdin:
... | csvsql --db sqlite:///test_db --tables test_tbl --insert
To extract data from sqlite database:
sql2csv --db sqlite:///test_db --query 'select * from test_tbl limit 3'
The output:
GroupName,Groupcode,GroupOwner,GroupCategoryID
System Administrators,sysadmin,13456,100
Independence High Teachers,HS Teachers,,101
John Glenn Middle Teachers,MS Teachers,13458,102
2) With sqlite3 command-line tool (allows the user to manually enter and execute SQL statements against an SQLite database)
Use the "
.import
" command to import CSV (comma separated value) data
into an SQLite table. The ".import
" command takes two arguments which
are the name of the disk file from which CSV data is to be read and
the name of the SQLite table into which the CSV data is to be
inserted.
Note that it is important to set the "mode" to "csv" before running
the ".import
" command. This is necessary to prevent the command-line
shell from trying to interpret the input file text as some other
format.
$ sqlite3
sqlite> .mode csv
sqlite> .import test.csv test_tbl
sqlite> select GroupName,Groupcode from test_tbl limit 5;
"System Administrators",sysadmin
"Independence High Teachers","HS Teachers"
"John Glenn Middle Teachers","MS Teachers"
"Liberty Elementary Teachers","Elem Teachers"
"1st Grade Teachers",1stgrade
sqlite>
answered Feb 16 at 9:47
RomanPerekhrest
22.4k12144
22.4k12144
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
add a comment |Â
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
csvkit uses agate's from_csv, which, for reasons which are unclear to me, reads in the entire contents of stdin github.com/wireservice/agate/blob/â¦
â Alex Coventry
Aug 21 at 7:07
add a comment |Â
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Has outputted csv a header columns as the 1st line?
â RomanPerekhrest
Feb 16 at 9:04
@RomanPerekhrest Not really. But of course covering both cases will make this Q&A more interesting.
â Ivan
Feb 16 at 10:14