Optimization
Access database queries examples
Total Queries Up to now, we have only retrieved records. With lots of data, it is important to calculate summaries for groups of records or totals on the entire table. This is possible by specifying Totals from the Show/Hide ribbon…
PostgreSQL database design tool
Navicat Cloud Navicat provides users with our Navicat Cloud service. Sync your connection settings and queries to the cloud so you can get real-time queries and connections anytime and anywhere. With Navicat Cloud, you can leverage…
free oracle database client
I have been using the Oracle SQL Developer (because it s free) and at first hated every minute spent with it. I am still having weird problems with graphics, as it s running on Vista and there seems to be some sort of graphics driver problem (luckily, no-one can get it to run properly on Vista, so I…
Query SharePoint database
One of the first rules of SharePoint that you learn when you start diving in to the product is that you shouldn t ever touch the SharePoint databases - it s fairly well known that you should leave them alone, but I ve been asked the question a few times over the years Well what if I m just reading from…
query to get database name in oracle
ACTION Identifies the position in the module (application name) and is set through the DBMS_APPLICATION_INFO package or OCI. AUDITED_CURSORID Returns the cursor ID of the SQL that triggered the audit. This parameter is not valid in a fine-grained auditing environment. If you specify it in such an environment…
MySQL select database query
Mysql_db_query — Selects a database and executes a query on it Description resource mysql_db_query ( string $database , string $query [, resource $link_identifier = NULL ] ) Parameters database The name of the database that will be selected. query The MySQL query. link_identifier The MySQL connection…
Query to delete database in MySQL
You would need special privileges to create or to delete a MySQL database. So, assuming you have access to the root user, you can create any database using the mysql mysqladmin binary. Be careful while deleting any database because you will lose your all the data available in your database. Here is an…
Squirrel SQL database client
Symptoms Users that experience database connectivity issues in JIRA can benefit from testing the connection through a DB client such as SQuirrel SQL Client. The client allows the user to test JDBC connections as well as provide a helpful stacktrace feature to help troubleshoot issues. Download client:…
Create database SQL query
CREATE DATABASE name [ [ WITH ] [ OWNER [=] user_name ] [ TEMPLATE [=] template ] [ ENCODING [=] encoding ] [ LC_COLLATE [=] lc_collate ] [ LC_CTYPE [=] lc_ctype ] [ TABLESPACE [=] tablespace ] [ CONNECTION LIMIT [=] connlimit ] ] Description CREATE DATABASE creates a new PostgreSQL database. To create…
Query to find oracle database version
The DBA_SYS_PRIVS view contains three columns of data: GRANTEE is the name, role, or user that was assigned the privilege. PRIVILEGE is the privilege that is assigned. ADMIN_OPTION indicates if the granted privilege also includes the ADMIN option. To determine which users have direct grant access to…
Queries in database definition
Query is another word for question. In fact, outside of computing terminology, the words query and question can be used interchangeably. For example, if you need additional information from someone, you might say, I have a query for you. In computing, queries are also used to retrieve information…
Restore database in SQL server using query
I d start with verifying the backup file using the following statements: restore headeronly from disk = C:Program FilesMicrosoft SQL ServerMSSQL10_50.DBASEMSSQLRestoreDBASE.BAK Verifies the backup but does not restore it, and checks to see that the backup set is complete and the entire backup is readable…
Query database from javascript
Javascript by itself cannot be used to deal with database. That is done using php (Or the server side language of your choice). Ajax is used to send a request to your php script using javascript which will in turn communicate with the db. And it doesn t require a page refresh. So what you are trying…
Process Historian database
Process historians fall under a category of their own in the world of industrial software due to the critical role they play in the success of analysis and decision making. Process historians are complex pieces of software that are used to store and analyze vital process and industrial data. For example…
Query to find database version in oracle
Because Oracle Database continues to evolve and can require maintenance, Oracle periodically produces new releases. Not all customers initially subscribe to a new release or require specific maintenance for their existing release. As a result, multiple releases of the product exist simultaneously. As…
Query the database
In this seventh hour, you will learn about database queries, which involve the use of the SELECT statement. The SELECT statement is the most frequently used of all SQL commands after a database s establishment. The SELECT statement allows you to view data that is stored in the database. The highlights…
Restore database SQL server query
For a database using the full or bulk-logged recovery model, SQL Server requires in most cases that you back up the tail of the log before restoring the database. For more information, see . B. Restoring full and differential database backups The following example restores a full database backup followed…
Mysql database application builder
AppGini helps you develop responsive web database applications instantly . You do not need to have any programming background to use it. Just define your database, set some options, click the Generate button, and you re done! Since AppGini was released on 2002, we ve continually worked on improving it…
symbols database
CONCEPTUAL DATA MODEL This ER model establishes a broad view of what should be included in the model set. Conceptual data models: Include important entities and the relationship between them. Do not specify attributes. Do not specify primary keys. Conceptual ERDs can be used as the foundation for logical…
Free database compare
Also available in the following editions: Database Comparer VCL and Database Comparer ActiveX Database Comparer helps to compare, synchronize and update databases structure. You can compare one database with another database or database with SQL/DDL script or even two SQL/DDL scripts! Database Comparer…
Database query optimization
Query optimization is addressed shortly in Database Systems, this lecture looks at a broader topic of optimization techniques. It concentrates on the central issues like join ordering and access path selections, but gives an overview of the whole query processing machinery. The main goals of the lecture…