Oracle sqlldr control file replace




















What am I doing wrong. We use the functions you specify to create an insert statement. You need to change your expression to: replace replace :gender,'-2','M' ,'-3','F' so that it does two replacements but is still only a single expression Is this answer out of date?

For example, "," comma in UTF on a big-endian system is X'c'. On a little-endian system it is X'2c00'. This allows the same syntax to be used in the control file on both a big-endian and a little-endian system. For example, the specification CHAR 10 in the control file can mean 10 bytes or 10 characters.

These are equivalent if the data file uses a single-byte character set. However, they are often different if the data file uses a multibyte character set. To avoid insertion errors caused by expansion of character strings during character set conversion, use character-length semantics in both the data file and the target database columns.

Byte-length semantics are the default for all data files except those that use the UTF16 character set which uses character-length semantics by default. The following datatypes use byte-length semantics even if character-length semantics are being used for the data file, because the data is binary, or is in a special binary-encoded form in the case of ZONED and DECIMAL :. This is necessary to handle data files that have a mix of data of different datatypes, some of which use character-length semantics, and some of which use byte-length semantics.

The SMALLINT length field takes up a certain number of bytes depending on the system usually 2 bytes , but its value indicates the length of the character string in characters. Character-length semantics in the data file can be used independent of whether character-length semantics are used for the database columns. Therefore, the data file and the database columns can use either the same or different length semantics.

The fastest way to load shift-sensitive character data is to use fixed-position fields without delimiters. To improve performance, remember the following points:.

If blanks are not preserved and multibyte-blank-checking is required, then a slower path is used. This can happen when the shift-in byte is the last byte of a field after single-byte blank stripping is performed. Loads are interrupted and discontinued for several reasons. Additionally, when an interrupted load is continued, the use and value of the SKIP parameter can vary depending on the particular case.

The following sections explain the possible scenarios. In a conventional path load, data is committed after all data in the bind array is loaded into all tables. If the load is discontinued, then only the rows that were processed up to the time of the last commit operation are loaded.

There is no partial commit of data. In a direct path load, the behavior of a discontinued load varies depending on the reason the load was discontinued:. Space errors when loading data into multiple subpartitions that is, loading into a partitioned table, a composite partitioned table, or one partition of a composite partitioned table :.

If space errors occur when loading into multiple subpartitions, then the load is discontinued and no data is saved unless ROWS has been specified in which case, all data that was previously committed will be saved.

The reason for this behavior is that it is possible rows might be loaded out of order. This is because each row is assigned not necessarily in order to a partition and each partition is loaded separately. If the load discontinues before all rows assigned to partitions are loaded, then the row for record "n" may have been loaded, but not the row for record "n-1".

Space errors when loading data into an unpartitioned table, one partition of a partitioned table, or one subpartition of a composite partitioned table:. In either case, this behavior is independent of whether the ROWS parameter was specified. When you continue the load, you can use the SKIP parameter to skip rows that have already been loaded. This means that when you continue the load, the value you specify for the SKIP parameter may be different for different tables.

If a fatal error is encountered, then the load is stopped and no data is saved unless ROWS was specified at the beginning of the load. In that case, all data that was previously committed is saved. This means that the value of the SKIP parameter will be the same for all tables.

When a load is discontinued, any data already loaded remains in the tables, and the tables are left in a valid state. If the conventional path is used, then all indexes are left in a valid state.

If the direct path load method is used, then any indexes on the table are left in an unusable state. You can either rebuild or re-create the indexes before continuing, or after the load is restarted and completes.

Other indexes are valid if no other errors occurred. See "Indexes Left in an Unusable State" for other reasons why an index might be left in an unusable state. Use this information to resume the load where it left off. To continue the discontinued load, use the SKIP parameter to specify the number of logical records that have already been processed by the previous load.

At the time the load is discontinued, the value for SKIP is written to the log file in a message similar to the following:. This message specifying the value of the SKIP parameter is preceded by a message indicating why the load was discontinued.

Note that for multiple-table loads, the value of the SKIP parameter is displayed only if it is the same for all tables. This reduces the need to break up logical records into multiple physical records. However, there may still be situations in which you may want to do so. At some point, when you want to combine those multiple physical records back into one logical record, you can use one of the following clauses, depending on your data:.

In the following example, integer specifies the number of physical records to combine. For example, two records might be combined if a pound sign were in byte position 80 of the first record. If any other character were there, then the second record would not be added to the first.

If the condition is true in the current record, then the next physical record is read and concatenated to the current physical record, continuing until the condition is false.

If the condition is false, then the current physical record becomes the last physical record of the current logical record. THIS is the default. If the condition is true in the next record, then the current physical record is concatenated to the current logical record, continuing until the condition is false.

For the equal operator, the field and comparison string must match exactly for the condition to be true. For the not equal operator, they can differ in any character. This test is similar to THIS, but the test is always against the last nonblank character.

If the last nonblank character in the current physical record meets the test, then the next physical record is read and concatenated to the current physical record, continuing until the condition is false.

If the condition is false in the current record, then the current physical record is the last physical record of the current logical record. Column numbers start with 1. Either a hyphen or a colon is acceptable start-end or start:end. If you omit end , then the length of the continuation field is the length of the byte string or character string. If you use end , and the length of the resulting continuation field is not the same as that of the byte string or the character string, then the shorter one is padded.

Character strings are padded with blanks, hexadecimal strings with zeros. A string of characters to be compared to the continuation field defined by start and end, according to the operator. The string must be enclosed in double or single quotation marks.

The comparison is made character by character, blank padding on the right if necessary. A string of bytes in hexadecimal format used in the same way as str. X'1FB' would represent the three bytes with values 1F, B0, and 33 hexadecimal. The default is to exclude them.

This is the only time you refer to positions in physical records. All other references are to logical records. That is, data values are allowed to span the records with no extra characters continuation characters in the middle. This means that the continuation characters are removed if they are in positions 3 through 5 of the record.

It also means that the characters in positions 3 through 5 are removed from the record even if the continuation characters are not in positions 3 through 5. Note that columns 1 and 2 are not removed from the physical records when the logical records are assembled.

Therefore, the logical records are assembled as follows the same results as for Example The specification of fields and datatypes is described in later sections. The table must already exist. If the table is not in the user's schema, then the user must either use a synonym to reference the table or include the schema name as part of the table name for example, scott.

That method overrides the global table-loading method. The following sections discuss using these options to load data into empty and nonempty tables. It requires the table to be empty before loading.

Case study 1, Loading Variable-Length Data, provides an example. If data does not already exist, then the new rows are simply loaded. All rows in the table are deleted and the new data is loaded. Case study 4, Loading Combined Physical Records, provides an example. The row deletes cause any delete triggers defined on the table to fire. For more information about cascaded deletes, see the information about data integrity in Oracle Database Concepts.

To update existing rows, use the following procedure:. Use secondary data files for loading LOBs and collections. Use conventional, direct path, or external table loads. Input Datafile contains file containing the data to be loaded. This tells sqlldr the location of the input file, the format of the input file, and other optional meta data information required by the sqlldr to upload the data into oracle tables.

All rights reserved. Check the log file: sqlldr-add-records. Check the log file: sqlldr-append-records. Check the log file: sqlldr-truncate-records. How to replace sqlldr values Ask Question. Asked 9 months ago.

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