What is database? - Definition from WhatIs.com
Computer databases typically contain aggregations of data records or files, such as sales transactions, product catalogs and inventories, and customer profiles. The most prevalent approach is the relational database, a tabular database in which data is defined so that it can be reorganized and accessed in a number of different ways
Newest Questions - Database Administrators Stack Exchange
mysql group-by order-by distinct asked 3 hours ago Xiu 1106 3 votes 2answers 244 views How do I find the next saturday in MySQL I have trigger and a stored procedure in it (so SP runs when trigger runs). mysql performance asked 3 hours ago George 1011 1 vote 2answers 37 views Get the nth distinct column value ordered by another column I want to get the row with the nth distinct value in a column, as ordered by another column
I even try to avoid hard-coding Y in my Oracle Application Express code.) By moving this logic to my packaged function, I not only greatly clean up the logic on page 659 and reduce the chance of introducing bugs in the future but I also increase the percentage of reusable code in my application. The downside of 100 percent coding for applications is that developers are generally much less productive and the resulting code is much less structured than application code developed with a RAD framework, such as Oracle Application Express (or Oracle JDeveloper)
How to create DB link from Oracle 10g to SQL server? - Oracle DBA Forums
If the users will not access Oracle directly from this server the code tree is perfectly acceptable.Step 6 - Setup the Heterogeneous Services file on server xYou will need to document the parameters that Oracle needs to locate and execute the ODBC drivers. You will need to define a DSN for the non-Oracle Sybase database.Figure 2 - ODBC Data Source Administrator showing currently installed driversSteps 2 and 3 - Seting up and testing the ODBCThe first task in setting up the ODBC driver is to configure the ODBC
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After the SELECT clause, we must have an INTO clause listing variables, one for each attribute in the SELECT clause, into which the components of the retrieved tuple must be placed. On the other hand, should the previous definition be a different procedure of the same name, you will not be warned, and the old procedure will be lost
After the compilation completes successfully, you should verify that the number of invalid objects is less than or equal to the number of invalid objects prior to the recompilation. If the files are deleted from the filesystem while the database is shut down, or if you change the directory that holds the libraries, they are extracted again automatically
Similar Posts by Content Area: filter, sqldev, synonyms, tables 45 comments add yours David Grimberg posted 2 years ago Is there a configuration setting to make this the default for new connections? How about retro actively applying it to dozens of current connections, on both the tables and views nodes? reply thatjeffsmith posted 2 years ago No way to make it default for connections. Previous Post: Locks and Killing Sessions in Oracle SQL Developer Next Post: Four Oracle SQL Developer Preferences You Should Know Search PostsSubscribe to ThatJeffSmith Get my best SQL Developer and database advice delivered to your inbox
First the good sides of encryption: * you want to hide what the sprocs are doing * you want to minimize the risk of someone changing sprocs on the fly Now to the not so good sides: * It gives you a false impression of security. Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account
SQL*Plus Command Reference
EDIT alone places the contents of the SQL buffer in a file by default named AFIEDT.BUF (in your current working directory) and invokes the text editor on the contents of the file. SQL*Plus SET commands such as SET LONG and SET LONGCHUNKSIZE and SET LOBOFFSET may be used to control the size of the buffer while PRINTing CLOB or NCLOB bind variables
Oracle Dynamic SQL
Method 3 This method lets your program accept or build a dynamic query, then process it using the PREPARE command with the DECLARE, OPEN, FETCH, and CLOSE cursor commands. Regardless of the value of DBMS, if you use a VARCHAR variable to store the dynamic SQL statement, make sure the length of the VARCHAR is set (or reset) correctly before you execute the PREPARE or EXECUTE IMMEDIATE statement
sql - Disable all table constraints in Oracle - Stack Overflow
Also you cannot switch a unique index to being a non-unique index so you have to drop it in order to drop the constraint (for this reason it's almost always better to implement unique constraints as a "real" constraint that is supported by a non-unique index). The order is important because you cannot drop a unique or primary key that is referenced by a foreign key, and there could be foreign keys on tables in other schemas that reference primary keys in your own, so unless you have ALTER ANY TABLE privilege then you cannot drop those PKs and UKs
SQL FAQ - Oracle FAQ
COMMIT - save work done SAVEPOINT - identify a point in a transaction to which you can later roll back ROLLBACK - undo the modification I made since the last COMMIT SET TRANSACTION - Change transaction options like isolation level and what rollback segment to use SET ROLE - set the current active roles DML are not auto-commit. If you include the SAMPLE clause within a multi-table or remote query, you will get a parse error or "ORA-30561: SAMPLE option not allowed in statement with multiple table references"
Display names of all constraints for a table in Oracle SQL - Stack Overflow
The problem is that to drop a constraint for the column of a particular table I need to know the name that I have supplied for each constraints, which I have forgotten
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