Stop The Pirates
http://www.stopthepirates.blogspot.com/For example, it shows the strawman has agreed to accept all deposits for and on your behalf into his bank account(just look at your credit card or statement to identify whose account it is) because you cannot touch that filthy lucre. This doesn't just give you another defensive strategy - it gives you a very important offensive weapon, because from this point on, anyone who is coming after your STRAWMAN for anything without your permission is trespassing on your commercial property
Oracle DELETE SQL Tips
Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. This is another data manipulation command, which means that we can roll back the deleted data, and that to make our changes permanent, we need to issue a commit
Newest Questions - Database Administrators Stack Exchange
oracle oracle-11g-r2 cache asked 4 hours ago user1578653 256316 2 votes 1answer 13 views How to copy non clustered indexes in transactional replication I create transactional replication ,but forget to include non clustered indexes and now my subscriber have only clustered indexes (primary key) and I want to transfer all nonclustered indexes to ... database-design asked 3 hours ago Rendy 1011 1 vote 1answer 13 views The connection is broken and recovery is not possible - sql server error I am having the following sql server error, while creating tempDB files
MySQL :: MySQL 5.0 Reference Manual :: 13.2.8 SELECT Syntax
If you use FOR UPDATE with a storage engine that uses page or row locks, rows examined by the query are write-locked until the end of the current transaction. For example, in the following statement, columnb is treated as an alias name: SELECT columna columnb FROM mytable; For this reason, it is good practice to be in the habit of using AS explicitly when specifying column aliases
So unless your application requires a loosely-typed cursor that dynamically adjusts to a changing table, you should never use the asterisk to refer to all the columns in a SELECT or INSERT as it results in fragile code, code on which it is impossible to do column-change impact analysis. Since code that relies on the asterisk still compiles after a table change, these errors are typically not found until runtime, sometimes not until the product is already in production
Inside an invoker's rights subprogram, the value from this view might be different from the value of the USER built-in function, which always returns the name of the session user. The closest match is one where all the parameters are at least as close as any other overloaded instance, as determined by the depth of inheritance between the subtype and supertype, and at least one parameter is closer
Description If you plan on updating or deleting records that have been referenced by a SELECT FOR UPDATE statement, you can use the WHERE CURRENT OF statement
How to Use the SQL WITH Clause
slide 4 of 4 Conclusion The SQL WITH clause is ideal in using with complex SQL statements rather than simple ones in that it allows you to create SQL queries that are friendly to read. As you will see, not only can the WITH clause be used with SELECT statements, it can also be used in other statements such as INSERT, DELETE, ALTER and basically where any other SQL statements can be used
When you call the default constructor to fill in all attribute values, you must supply a parameter for every attribute; unlike constants and variables, attributes cannot have default values. The TABLE operator uses a subquery to extract the varray or nested table, so that the INSERT, UPDATE, or DELETE statement applies to the nested table rather than the top-level table
TABLE ALIASES are used to shorten your SQL to make it easier to read or when you are performing a self join (ie: listing the same table more than once in the FROM clause). Example - ALIAS a Table When you create an alias on a table, it is either because you plan to list the same table name more than once in the FROM clause (ie: self join), or you want to shorten the table name to make the SQL statement shorter and easier to read
Based on the info above, the aliases can't be used in the group by since group by runs first, before aliases from the select clause are stored in memory. Prior to processing the query Oracle reads it, and by reading it the preprocessor can replace the alias by the original statement and still send the correct query to the database
sql - Using an Alias in a WHERE clause - Stack Overflow
Oracle does not need to materialize inner queries before applying outer conditions -- Oracle will consider transforming this query internally and push the predicate down into the inner query and will do so if it is cost effective
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