Official explanation:
ORA-01002:
Fetch out of sequence
Cause:
In a host language program, A is FETCH call is issued out of sequence. A successful Parse-and-execute call must is issued before a fetch. This can occur if
Official explanation:
ORA-01002:
Fetch out of sequence
Cause:
In a host language program, a fetch call was issued out of sequence. A successful parse-and-Execute call must be issued before a fetch. this can occur if an
Objective:People who have done web development basically know that the primary key values in a database table are sometimes used as numeric types and are self-increasing. This makes it easy to use tools to create tables in MySQL and SQL Server.
SCN is the clock that Oracle hangs on the wall. Get up in the morning, say "Get up SCN"; eat breakfast, name "Breakfast SCN"; go to work, called "Go out SCN ". Any of our activities will correspond to an SCN. We can use an internal Oracle package to
Oracle's sequence implementation is very flexible, so it also brings some usability issues, how to get the new insert record generated by the sequence value and other databases have a large difference, this article detailed the country introduced 5
Sometimes, when inserting data into the database, if the ID value is a 32-bit UUID, but it is not appropriate to write a character by yourself, you need to use a function to generate a sequence value Or
Sometimes, when inserting data into the
Oracle SQL Performance 1. ORACLE optimizer:. RULE (based on Rules) B. COST (COST-based) c. CHOOSE (optional) sets the default optimizer. various declarations of the OPTIMIZER_MODE parameter in the ora file, such as RULE, COST, CHOOSE, ALL_ROWS,
The Oracle tutorial you are looking at is about backup of Oracle databases. One, meaning:
When we use a database, we always want the contents of the database to be reliable and correct, but due to computer system failure (hardware failure, network
The Oracle tutorial you are looking at is about backup of Oracle databases. One, meaning:
When we use a database, we always want the contents of the database to be reliable and correct, but due to computer system failure (hardware failure, network
Document directory
Oracle pagination tips
Oracle pagination tips
Oracle tips by Vikas Rajan atrey
Also see these important notes on estimating the maximum results from a paginated Oracle SQL query.
Invariably while developing data intensive Web
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