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This is the schema of my table:
create table LPCG(ID integer primary key, PCG text, Desc text, test text);
I wish to drop the column "test", and hence use the command:
alter table LPCG drop column test;
This is the error message I get:
Error: near "drop": syntax error
Can someone please help me correct my error?
An additional question is: I understand that ID is the primary key attribute. Would I be able to drop that column? If not, is there a workaround which anyone has used?
Thanks in advance for any help.
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You can not use the ALTER TABLE statement to drop a column in a table. Instead you will need to rename the table, create a new table, and copy the data into the new table.
SQLite supports a limited subset of ALTER TABLE. The ALTER TABLE command in SQLite allows these alterations of an existing table: it can be renamed; a column can be renamed; a column can be added to it; or a column can be dropped from it.
DB Browser for SQLite allows you to add or drop columns. In the main view, tab Database Structure , click on the table name. A button Modify Table gets enabled, which opens a new window where you can select the column/field and remove it.
Up to version 3.35, SQLite did not support ALTER TABLE DROP COLUMN statements. You could only rename table, or add columns.
If you want to drop a column, your best option was to create a new table without the column, and to drop the old table in order to rename the new one.
As of now, ALTER TABLE support is still limited but includes dropping a column, under conditions.
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