Best Database Management Tools to Buy in December 2025
Office Suite 2025 Special Edition for Windows 11-10-8-7-Vista-XP | PC Software and 1.000 New Fonts | Alternative to Microsoft Office | Compatible with Word, Excel and PowerPoint
- ALL-IN-ONE PACKAGE FOR WORD PROCESSING, SPREADSHEETS, AND PRESENTATIONS.
- ACCESS 1,000 FONTS AND 20,000 CLIPART IMAGES FOR CREATIVE PROJECTS.
- FULLY COMPATIBLE WITH MS OFFICE AND EASY TO INSTALL ON WINDOWS.
LibreOffice Suite 2025 Home and Student for - PC Software Professional Plus - compatible with Word, Excel and PowerPoint for Windows 11 10 8 7 Vista XP 32 64-Bit PC
- ALL-IN-ONE SOLUTION: WORD, EXCEL, & PRESENTATIONS IN ONE PACKAGE.
- EXTENSIVE EXTRAS: 20,000 CLIPART IMAGES AND DEDICATED SUPPORT INCLUDED.
- COMPATIBLE & ACCESSIBLE: WORKS SEAMLESSLY WITH MAJOR OFFICE SOFTWARE!
Membership Manage Professional; 100,000 Member Database Tracking and Management Software; Multiuser License (Online Access Code Card) Win, Mac, Smartphone
- LIFETIME ACCESS WITH NO MONTHLY FEES – SAVE MONEY LONG-TERM!
- EFFORTLESSLY MANAGE MEMBER DETAILS, ATTENDANCE, AND PAYMENTS.
- SIMPLIFY EVENTS AND RENEWALS WITH EASY TRACKING AND REMINDERS!
Database Development For Dummies
- AFFORDABLE PRICING FOR QUALITY USED BOOKS IN GREAT SHAPE!
- ECO-FRIENDLY CHOICE: RECYCLE AND READ WITH OUR USED BOOK SELECTION.
- DIVERSE SELECTION: FIND RARE GEMS AND BESTSELLERS AT LOW PRICES!
Family Tree Heritage Gold 16 - Genealogy Software - Includes Free Searches to FamilySearch, the World's Largest Genealogy Database - CD/PC
-
ACCESS 14 BILLION RECORDS FOR FREE-DISCOVER YOUR FAMILY HISTORY!
-
USER-FRIENDLY PLATFORM TO BUILD AND SHARE YOUR FAMILY TREE EASILY.
-
INNOVATIVE TREETIPS PROVIDE INSTANT HINTS ABOUT YOUR ANCESTORS!
Office Suite 2025 Home & Student Premium | Open Word Processor, Spreadsheet, Presentation, Accounting, and Professional Software for Mac & Windows PC
-
LIFETIME OWNERSHIP: NO YEARLY FEES; OWN OFFICE SUITE 2022 PREMIUM FOREVER!
-
COMPREHENSIVE COMPATIBILITY: EFFORTLESSLY EDIT ALL WORD, EXCEL, AND POWERPOINT FILES.
-
PACKED WITH BONUSES: INCLUDES 11 EZALINK BONUSES AND PRODUCTIVITY SOFTWARE!
Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems
EZ Home and Office Address Book Software
-
VERSATILE SOFTWARE FOR ALL WINDOWS VERSIONS-IDEAL FOR HOME AND BUSINESS!
-
EASY LABEL PRINTING WITH CUSTOM CLIP ART ON POPULAR AVERY LABELS.
-
PERSONALIZED DATABASES FOR HOME AND BUSINESS WITH FRIENDLY SUPPORT!
Office Suite on DVD for Home Student and Business, Compatible with Microsoft Office Word Excel PowerPoint for Windows 11 10 8 7 powered by Apache
-
ALL-IN-ONE SOLUTION: COMPLETE PRODUCTIVITY SUITE ON A SINGLE DVD.
-
SEAMLESS COMPATIBILITY: WORKS WITH MS OFFICE FILES FOR EFFORTLESS EDITING.
-
BONUS GUIDES & SUPPORT: INCLUDES COMPUTER GUIDE AND USER COMMUNITY ACCESS.
To create a user in PostgreSQL, you can use the command-line interface utility called "psql". Here is the syntax to create a user:
CREATE USER username WITH PASSWORD 'password';
Replace "username" with the desired name for the user and "password" with the desired password. This command will create a new user with the specified username and password.
To grant specific privileges to the user, you can use the "GRANT" command. For example, to grant all privileges to the user on a specific database, you can run:
GRANT ALL PRIVILEGES ON DATABASE database_name TO username;
Replace "database_name" with the name of the database to which you want to grant privileges.
After executing the above commands, the user will be created and can be used to connect to the PostgreSQL database using the specified username and password.
How to lock/unlock a user account in PostgreSQL?
In PostgreSQL, locking/unlocking a user account is done by altering the user's account status. Here are the steps to lock/unlock a user account:
- Connect to the PostgreSQL database server with a superuser or a user with the necessary permissions.
- Open a new SQL command prompt or use a database management tool such as pgAdmin.
- To lock a user account, execute the following command, replacing with the username of the user: ALTER USER CONNECTION LIMIT 0; This command sets the connection limit to 0, effectively preventing the user from connecting to the database.
- To unlock a user account, execute the following command, replacing with the username of the user: ALTER USER CONNECTION LIMIT -1; This command sets the connection limit to -1, allowing the user to connect to the database again.
- You can verify the locked/unlocked status of a user account by querying the pg_user catalog table: SELECT usename, usesuper, userepl, usecreatedb, usesuper, usecatupd, passwd, valuntil, rolvaliduntil FROM pg_user; The valuntil column will show the date and time until which the user is locked.
That's it! You have now learned how to lock/unlock a user account in PostgreSQL.
How to revoke privileges from a user in PostgreSQL?
To revoke privileges from a user in PostgreSQL, you can use the REVOKE command. Here are the steps to revoke privileges:
- Connect to the PostgreSQL database server using an account with superuser or the necessary privileges to revoke privileges.
- Determine the specific privileges you want to revoke from the user. Common privileges include SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, and GRANT OPTION.
- Use the following syntax to revoke privileges:
REVOKE privileges ON table_name FROM user_name;
Replace "privileges" with the specific privileges you want to revoke (e.g., SELECT, INSERT, UPDATE), "table_name" with the name of the table or object you want to revoke privileges from, and "user_name" with the name of the user you want to revoke privileges from.
For example, if you want to revoke the SELECT privilege from the user "testuser" on the table "employees", you would use the following command:
REVOKE SELECT ON employees FROM testuser;
- You can also revoke multiple privileges at once by separating them with commas. For example:
REVOKE SELECT, INSERT ON employees FROM testuser;
- After running the REVOKE command, the specified user will no longer have the revoked privileges on the specified table or object.
Remember to use caution when revoking privileges, as it can affect the user's ability to access certain data or perform specific actions.
What is the purpose of the CREATEDB attribute when creating a user in PostgreSQL?
The CREATEDB attribute is used when creating a user in PostgreSQL to grant the user the ability to create databases. By including the CREATEDB attribute in the command, you give the user permission to create new databases within the PostgreSQL system. This attribute essentially grants administrative privileges related to database creation and management to the specified user.