![]() ![]() The solutions I found involved lousy things like opening the dump file in an editor (not feasible if the file is huge) and finding and replacing parentheses and commas, or running the file through a script to remove them. I encountered a number of problems in doing this there are slight differences in how each database creates and handles dump files. My initial idea was to simply create a SQL dump file out of SQLite and then restore it in Postgres. We have a couple of different SQLite / Spatialite projects that we produce and I needed to move a large number of attribute tables from them into the Postgres database. ![]() So when we create a table like another table then we can either copy the whole table structure and data of an existing table or we can copy the table structure and some partial data or no data at all.We recently created a PostgreSQL / PostGIS database on a server on our local campus network and spent the last few months loading data into it. In this section, we will learn to create a table like another existing table in PostgreSQL. PostgreSQL create table like another table POSTGRESQL COPY TABLE HOW TOIn this section we learnt how to create a table using IF NOT EXISTS in PostgreSQL. POSTGRESQL COPY TABLE CODEIt is clear from the screenshot that the system generates a notice rather than an error and the process continues without any error as this part of the code gets skip in the system. ![]() It is clear from the syntax that we have to just use the IF NOT EXISTS keywords after the CREATE TABLE command and the system will understand we want to have a check before creating the new table.įor the implementation, first we will create a new table as follows: CREATE TABLE Employee( So the syntax to create a table using IF NOT EXISTS in PostgreSQL is: CREATE TABLE TABLE_NAME( If we do not use this statement then an error is generated in such a situation which breaks down the entire process. So when we use this statement it checks the entire database before creating the new table for a table with the same name, if it finds a table having the same name as that of the new table it will generate a Notice and the process continues. As the name suggests, we use this statement when we want to create a table, if a table with the same name does not exist in the database. In this section, we will learn to create a table in PostgreSQL using the IF NOT EXISTS feature. In this section we learnt how to create a table in PostgreSQL with a Foreign Key.
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