Sometimes your system may give you a pl sql variable binding error. There can be many reasons for this problem.

Bind variables are variables that someone creates in sql*plus and then focuses on PL/SQL. If you create an awesome bind variable in SQL*Plus, you can use that variable as a declared variable in your PL/SQL routine and then access a lot of SQL*Plus.


a is just a PL/SQL local variable, not all SQL bind variables, so you don’t need a colon when referring to it:

 where country_name is equal to be a;

For a mandatory aspect, it must be understood by the client/application/IDE; in SQL Developer, for example:

accept x char Instant 'Please enter something:'variable varchar2(50);begin :a := '&x';  Select MIN (lowest height) as the lowest, Max (highest_height) as the highest.  country  where country_name: a;End;

Note that there is simply no declare section now, since you no longer declared a as a new PL/SQL variable – it’s a potential variable. To give it multiple &x replacements, it needs a colon, :a '&x';, so :=, as is also ‘binding variable.< / not p>

I’m not saying what, you should do it; only visible difference.

accept y prompt char 'Please enter something:'begin  SelectEnter MIN(highest as lowest_mark) expensive, minus Max(highest_mark) as highest  country  because country name = '&x';End;

By the way, you currently need to choose something so that your current code still doesn’t work the way it was currently written.

I got the accepted error “SP2-0552 Custom Undeclared Binding” in Oracle Database.

Undeclared Bind Variable.

How do you declare a bind variable in PL SQL?

Definition Bind variables in Oracle Database can be defined like variables we create in SQL*PLUS and then refer to in PL/SQL.PEBELT VARCHAR2 v_bind1(10);VARIABLE;variable v_bind2;Limitation:Exec:v_bind1: means rebellion”;INSTALL “Rider OUTPUT SERVER;BEGIN.

bind variable error pl sql

This is an sp2-0552 bug, the specified bind variable has not actually been declared to match.

Issue a VARIABLE command, make sure that the bind variables that someone uses in your sql statement are ok. Before executing an SQL reduce statement on variables, you must either use the VARIABLE command to declare a near-variable.

bind variable error pl sql

Before Explain than point out the cause of your error, here is some general information about hole variables according to the SQL*Plus manual.

In case 1, even though the variable MGR after the declare statement is actually “mgr defined by varchar2(3);”, it is op Divided as a local variable within an anonymous PL/SQL block, and the corresponding variable is defined by the â statement. €œ:mgr := The set “001” is actually a bound variable, indicated by colons (:).

In some scenarios, the anonymous PL/SQL block has completely exited, meaning no error is returned. This is because the current referenced MGR variable is a defined local variable and not a bind variable because the colon (:) is not used. After a successful execution code, most of the errors were seen when executing a particular PRINT command. Indeed, the PRINT command is used to display certain bindings and should not be included in trying to display variables defined in your community.

In both scenarios, our own error occurred when referencing the MGR bind variable, since the creation of the MGR bind variable was usually not performed at all. According to the above information from SQL*Plus, the bind variable setting guide uses VARIABLE, a command that is in no context was not used in any of the scenarios.

The following can successfully repeat both scenarios, but you must first create an MGR bind variable.

SQL> VARCHAR2(10)Scenario Manager 1:Announce Bishopsql>varchar2(3);begin  :mgr := '001';End;/PL/SQL procedure completed successfully.when 

Now that the anonymous block has worked, you can see the value of the specific MGR bind variable.

SQL> PRINT MGRIGR----------------------------------001

Scenario 2: I needed to change the reference to my bind variable instead of the variable roughly defined here, described below, and add a colon (:).

Can host variable be bind to PL SQL?

Binding variables to refer to coordinate variables. Host variables are completely defined by the host or caller, while sticky variables take values ​​from the SQL client. Pl / sql, in terms of binding and essential hosting, the difference disappears.


declare that mgr decides on varchar2(5);begin'002': handler from double;End;/PL/SQL strategy completed successfully.
SQL> PRINT MGRIGR----------------------------------002

If you need to learn Oracle Database for Beginners, read the following articles. Tutorial

Oracle Tutorials | Oracle Database for Beginner Administrator (Junior Database)

How do you bind a parameter in SQL?

Parameters, also known as dynamic specifications or bind variables, are another way to pass data to the catalog. Instead of entering values ​​into the sql statement yourself, be sure to use a placeholder like ! ? , or :name @name and provide most of the actual values ​​via a separate API call.

SP2-0552: Undeclared oracle bind variable.Cause: The specified flow variable was not  announced.Action: Run a specific VARIABLE command, make sure that the variables you used in those SQL statements are bound exist. Before executing an SQL statement with bound variables, you must use them yourself.Declaration VARIABLE command for each variable.


SQL> dispatchervarchar2(3);begin  :mgr := '001';End;/SP2-0552: Adaptable "MGR" link is not registered.Scenario 2:SQL > declarevarchar2(5);begin  Mgr Make a decision in MGR '002' about double work;End;/PL/SQL completed successfully.Although the above does cause a purchase error, after if Try to display the value of the MGR aspect if you need it.SQL> print handler;SP2-0552: Variable content is not declared as "mgr".

Use Variable Binding Variables

bind are variables you create in SQL*Plus and then refer to in PL/SQL or SQL. When you create a sticky variable in SQL*Plus, you can use that variable as a variable declared in your PL/SQL routine and then access the variable from within SQL*Plus. ComponBind entries can be used, for example, to store return code for or debug PL/SQL routines.

Create bind variables from
You create bind variables in the sql* command plus VARIABLE. For example

This variable command creates bindings named ret_val with some data type NUMBER. See the command for variable for more information. (To list all bind variables created in the session, type VARIABLE with no arguments.)

Reference variables
You access PL/SQL bind variables by typing the intestinal tract (:) immediately after the variable name. For example

Show related show variables
Use the sql*plus PRINT command to get the value of a script variable. For example:

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