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V$SQL lists statistics on shared SQL areas without the GROUP BY clause and contains one row for each child of the original SQL text entered. Statistics displayed in V$SQL are normally updated at the end of query execution.
2 Ιουν 2023 · Bind variables, often called bind parameters or query parameters, are often used in WHERE clauses to filter data. Instead of putting the required value into the query, or writing separate queries for each different value, or concatenating strings, you can use bind variables. Here’s how it works.
V$SQL_BIND_CAPTURE displays information on bind variables used by SQL cursors. Each row in the view contains information for one bind variable defined in a cursor. This includes:
Bind variable can be used in Oracle SQL query with "in" clause. Works in 10g; I don't know about other versions. Bind variable is varchar up to 4000 characters.
20 Ιαν 2017 · In this third article, we will look at the issue of duplicate SQL statements and how Bind Variables can help us. Are cursors being shared? For a query to perform optimally, it’s essential that the best possible execution method is chosen.
Bind parameters—also called dynamic parameters or bind variables—are an alternative way to pass data to the database. Instead of putting the values directly into the SQL statement, you just use a placeholder like ?, :name or @name and provide the actual values using a separate API call.
Concatenating variable values into a SQL statement makes the statement unique, forcing a hard parse. By contrast, using bind variables allow reuse of statements as the text of the statement remains the same. Only the value of the bind variable changes.
