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5/23/2025
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cursor_common_sql_commands_overview.md

Common SQL Commands Overview

Exported on 5/23/2025 at 15:13:31 CDT from Cursor (0.50.6)


User

i'm looking at the sql datbase rn. what are some common commands. i only have saved SELECT * FROM summer_notes_v1


Cursor

When working with SQL databases, there are several common commands you can use to interact with your data. Here are some of the most frequently used SQL commands:

  1. SELECT: Retrieve data from one or more tables.

    SELECT column1, column2 FROM table_name;
  2. INSERT: Add new records to a table.

    INSERT INTO table_name (column1, column2) VALUES (value1, value2);
  3. UPDATE: Modify existing records in a table.

    UPDATE table_name SET column1 = value1 WHERE condition;
  4. DELETE: Remove records from a table.

    DELETE FROM table_name WHERE condition;
  5. CREATE TABLE: Create a new table in the database.

    CREATE TABLE table_name ( column1 datatype, column2 datatype, ... );
  6. DROP TABLE: Delete a table and its data from the database.

    DROP TABLE table_name;
  7. ALTER TABLE: Modify an existing table structure.

    ALTER TABLE table_name ADD column_name datatype;
  8. WHERE: Filter records based on specific conditions.

    SELECT * FROM table_name WHERE condition;
  9. ORDER BY: Sort the result set in ascending or descending order.

    SELECT * FROM table_name ORDER BY column1 ASC|DESC;
  10. GROUP BY: Group rows that have the same values in specified columns into summary rows.

    SELECT column1, COUNT(*) FROM table_name GROUP BY column1;
  11. JOIN: Combine rows from two or more tables based on a related column.

    SELECT columns FROM table1 JOIN table2 ON table1.common_column = table2.common_column;

These commands will help you perform a variety of operations on your SQL database. If you have specific tasks in mind, let me know, and I can provide more tailored commands!

SELECT column1, column2 FROM table_name;
INSERT INTO table_name (column1, column2) VALUES (value1, value2);
UPDATE table_name SET column1 = value1 WHERE condition;
DELETE FROM table_name WHERE condition;
CREATE TABLE table_name ( column1 datatype, column2 datatype, ... );
DROP TABLE table_name;
ALTER TABLE table_name ADD column_name datatype;
SELECT * FROM table_name WHERE condition;
SELECT * FROM table_name ORDER BY column1 ASC|DESC;
SELECT column1, COUNT(*) FROM table_name GROUP BY column1;
SELECT columns FROM table1 JOIN table2 ON table1.common_column = table2.common_column;

User

how do i get all column from 'summer_notes_v1'


Cursor

To retrieve all columns from the summer_notes_v1 table, you can use the following SQL command:

SELECT * FROM summer_notes_v1;

This command will return all rows and all columns from the summer_notes_v1 table. If you have any specific conditions or filters you want to apply, let me know!

SELECT * FROM summer_notes_v1;

User

how about just a list of all the columns


Cursor

To get a list of all the columns in the summer_notes_v1 table, you can use the following SQL command, which varies slightly depending on the database system you are using. Here are examples for some common SQL databases:

  1. For MySQL:

    SHOW COLUMNS FROM summer_notes_v1;
  2. For PostgreSQL:

    SELECT column_name FROM information_schema.columns WHERE table_name = 'summer_notes_v1';
  3. For SQLite:

    PRAGMA table_info(summer_notes_v1);
  4. For SQL Server:

    SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'summer_notes_v1';

Choose the command that corresponds to the SQL database you are using, and it will return a list of all the columns in the summer_notes_v1 table. If you need help with a specific database, let me know!

SHOW COLUMNS FROM summer_notes_v1;
SELECT column_name FROM information_schema.columns WHERE table_name = 'summer_notes_v1';
PRAGMA table_info(summer_notes_v1);
SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'summer_notes_v1';

User

i'm using sqlite. create a md file with common sqlite commands.


Cursor

Here's a Markdown file content with common SQLite commands that you can create. You can save it as common_sqlite_commands.md.

# Common SQLite Commands ## Basic Commands ### Select Data Retrieve all columns from a table: ```sql SELECT * FROM table_name;

Retrieve specific columns from a table:

SELECT column1, column2 FROM table_name;

Insert Data

Insert a new record into a table:

INSERT INTO table_name (column1, column2) VALUES (value1, value2);

Update Data

Update existing records in a table:

UPDATE table_name SET column1 = value1 WHERE condition;

Delete Data

Delete records from a table:

DELETE FROM table_name WHERE condition;

Table Management

Create Table

Create a new table:

CREATE TABLE table_name ( column1 datatype, column2 datatype, ... );

Drop Table

Delete a table and its data:

DROP TABLE table_name;

Alter Table

Add a new column to an existing table:

ALTER TABLE table_name ADD column_name datatype;

Schema Information

List All Tables

Show all tables in the database:

.tables

List All Columns

Get a list of all columns in a specific table:

PRAGMA table_info(table_name);

Query Modifiers

Where Clause

Filter records based on conditions:

SELECT * FROM table_name WHERE condition;

Order By

Sort the result set:

SELECT * FROM table_name ORDER BY column1 ASC|DESC;

Limit

Limit the number of records returned:

SELECT * FROM table_name LIMIT number;

Group By

Group rows with the same values:

SELECT column1, COUNT(*) FROM table_name GROUP BY column1;

Joins

Combine rows from two or more tables:

SELECT columns FROM table1 JOIN table2 ON table1.common_column = table2.common_column;

You can create this file in your preferred text editor or IDE. If you need any modifications or additional commands, let me know!

```markdown
# Common SQLite Commands

## Basic Commands

### Select Data
Retrieve all columns from a table:
```sql
SELECT * FROM table_name;

Retrieve specific columns from a table:

SELECT column1, column2 FROM table_name;

Insert Data

Insert a new record into a table:

INSERT INTO table_name (column1, column2) VALUES (value1, value2);

Update Data

Update existing records in a table:

UPDATE table_name SET column1 = value1 WHERE condition;

Delete Data

Delete records from a table:

DELETE FROM table_name WHERE condition;

Table Management

Create Table

Create a new table:

CREATE TABLE table_name ( column1 datatype, column2 datatype, ... );

Drop Table

Delete a table and its data:

DROP TABLE table_name;

Alter Table

Add a new column to an existing table:

ALTER TABLE table_name ADD column_name datatype;

Schema Information

List All Tables

Show all tables in the database:

.tables

List All Columns

Get a list of all columns in a specific table:

PRAGMA table_info(table_name);

Query Modifiers

Where Clause

Filter records based on conditions:

SELECT * FROM table_name WHERE condition;

Order By

Sort the result set:

SELECT * FROM table_name ORDER BY column1 ASC|DESC;

Limit

Limit the number of records returned:

SELECT * FROM table_name LIMIT number;

Group By

Group rows with the same values:

SELECT column1, COUNT(*) FROM table_name GROUP BY column1;

Joins

Combine rows from two or more tables:

SELECT columns FROM table1 JOIN table2 ON table1.common_column = table2.common_column;

You can create this file in your preferred text editor or IDE. If you need any modifications or additional commands, let me know!
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