The LIKE conditions specify a test involving pattern matching. Whereas the equality operator (=) exactly matches one character value to another, the LIKE ...
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Purpose. Use a SELECT statement or subquery to retrieve data from one or more tables, object tables, views, object views, materialized views, analytic views ...
A condition specifies a combination of one or more expressions and logical (Boolean) operators and returns a value of TRUE , FALSE , or UNKNOWN .
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Logically partition and order the data that is used in the MATCH_RECOGNIZE clause with its PARTITION BY and ORDER BY clauses. Define patterns of rows to seek ...
Hints are comments in a SQL statement that pass instructions to the Oracle Database optimizer. The optimizer uses these hints to choose an execution plan for ...
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Mar 26, 2012 · I need to select rows randomly from an Oracle DB. Ex: Assume a table with 100 rows, how I can randomly return 20 of those records from the ...
A format model is a character literal that describes the format of datetime or numeric data stored in a character string. A format model does not change the ...
SYS_CONTEXT returns the value of parameter associated with the context namespace at the current instant. You can use this function in both SQL and PL/SQL ...
Purpose. Use the CREATE TABLE statement to create one of the following types of tables: A relational table, which is the basic structure to hold user data.
May 18, 2012 · No there is no difference at all in functionality. (The same is true for all other DBMS - most of them support both styles):.
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