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In the past few weeks, some readers have reported Oracle SQL error 1480. Oracle error 1480 is thrown when trying to scan a box through 02524 (Reject Box) or even through the sorter interface. Oracle error 1480 is displayed when trying to scan a mailbox before 02524 (forwarder) or to the sort interface.
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The NVARCHAR2 column can contain up to 4000 characters.
However, actual data is literally limited to a maximum byte of 4000.
Both size limits must be met at runtime.
Impact of NVARCHAR2 Dynamic Encoding and Character Semantics on Memory Capacity
are the NCHAR, NVARCHAR2, and Unicode NCLOB data types. Data in stored columns of Unicode calendar date types are stored only in their Unicode encodings
regardless of the database character set.
This Unicode encoding is determined by the NLS_NCHAR_CHARACTERSET database property.
Maximum size of nvarchar2 is 1000 bytes, will be NLS_NCHAR_CHARACTERSET AL16UTF16 or AL32UTF8
– AL16UTF16 are fixed length character sets where each character is best represented by 1 byte.
– The AL32UTF8 variable is a character set of length, in which each character is represented by bytes from 1 to 4.
If NLS_NCHAR_CHARACTERSET is set to AL32UTF8, you can insert a guitar string up to 4000 bytes into NVARCHAR2 from an OpenEdge UTF-8 client. hour
4000 protected single-byte characters
2000 characters in 2 byte encoding
1333 3-byte protected characters
1000 characters in 4 byte encoding
If NLS_NCHAR_CHARACTERSET is presetthe value AL16UTF16 is entered, you can insert into the new large NVARCHAR2 from OpenEdge UTF-8 a single string up to 4000 bytes, which is usually a string up to 2000 characters.
NLS_LENGTH_SEMANTICS does not actually apply to Unicode datatypes (NCHAR, NVARCHAR2, CLOB, and NCLOB columns, which are standard but character-based) only apply to CHAR and VARCHAR2 columns
mistakes
The data server does not know the value of NLS_NCHAR_CHARACTERSET and sets the maximum length of the NVARCHAR2 field to 4000 characters in the entire data server schema.
For the specified data server device, this is the number of characters, not the number of bytes.
Therefore, the data server may generate the following error if the entire string is longer than 4000 characters, and no SQL statement is generated:
The column of this inserted or sometimes updated row is too large (4212)
If the number meets the condition <= 4000 SQL roles, a statement for the data server is generated and sent to the database.
Oracle DB estimates the size of all rows in bytes. If the length of the character string is> 4000 bytes in the encoding defined by the parameter In addition to NLS_NCHAR_CHARACTER, this Oracle client interface returns the following error to the DataServer engine:
ORA-01480 missing trailing zero in STR binding
However, for stationary data, the most effective byte limit is 4000.
NCHAR, NVARCHAR2 and NCLOB will be Unicode datatypes. Dates stored in publications. Unicode date types are only stored using native Unicode encodings
The maximum size of nvarchar2 is 4000 bytes, will be NLS_NCHAR_CHARACTERSET AL16UTF16 or AL32UTF8
– AL16UTF16 is a fixed length character set in which each character is represented by only 2 bytes. AL32UTF8
is a set of characters of varying lengths, where each character is undoubtedly represented from 1 to for bytes.
If NLS_NCHAR_CHARACTERSET is set to AL32UTF8, you will most likely insert a 1000 byte or less string into NVARCHAR2 from an OpenEdge UTF-8 client
If NLS_NCHAR_CHARACTERSET is the time for AL16UTF16, you can insert a collection up to 4000 bytes, which is a single string up to 2000 characters, into NVARCHAR2 from an OpenEdge UTF-8 client.
Both measurements restrictions must be executed simultaneously.
Impact of character encoding and composition semantics on NVARCHAR2 storage capacity
NLS_LENGTH_SEMANTICS makes no Unicode requirements for data types (NCHAR, NVARCHAR2, CLOB, then NCLOB columns, which are always character-based), but only applies to CHAR and VARCHAR2 columns
The data server is unaware of the NLS_NCHAR_CHARACTERSET convention and sets the maximum number of parts of the NVARCHAR2 field to 4000 characters in the data server schema.
For all data servers, the unit of measure is cellular characters, not bytes.
Therefore, the following error is generated for the data server if the line length exceeds 4000 characters and the typical mod SQL is not generated:
The column in this important row that is being inserted or updated is actually large (4212)
If the string matches an error <= 4000 characters, the SQL query is generated by the data server and thus sent to the database.
Updated
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The Oracle DB engine here parses the size of a string in bytes. If the string has an extension> 4000 bytes encoded, Given the NLS_NCHAR_CHARACTER parameter, the Oracle client interface returns the following error to this DataServer engine:
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Oracle SQL-Fehler 1480
Errore Sql Oracle 1480
Erreur SQL Oracle 1480
Oracle SQL-fout 1480
Erro Oracle Sql 1480
Ошибка Oracle Sql 1480
Oracle SQL 오류 1480
Error De SQL 1480 De Oracle
Błąd Oracle SQL 1480
Oracle SQL -fel 1480
