It must be described with double quotation scars if its title can be a reserved word.You make use of SQLLoaders information definition language (DDL) to manage how SQLLoader works a data insert into your database.You can also make use of DDL to manipulate the information you are loading.
The SQLLoader control file can be a repository that contains the DDL instructions that you possess developed to manage where SQLLoader will find the data to insert, how SQLLoader expects that data to be formatted, how SQLLoader will be set up (memory space administration, rejecting records, interrupted insert dealing with, etc.) as it loads the information, and how it will manipulate the data being packed. You develop the SQLLoader handle document and its material making use of a simple text publisher like vi, or xemacs. Sqlldr Control File Nullif How To Use DDLThe sleep of this part points out how to use DDL to obtain your needed data fill. The SQLLoader DDL diagrams (sometimes called railroad diagrams) utilized in this chapter to illustrate syntax use regular SQL syntax notation. For more info about the syntax notation utilized in this part, discover the PLSQL Customers Guidebook and Reference point or the préface in the 0racle8i SQL Referrals. The following diagrams of DDL format are demonstrated with certain clauses flattened (positionspec, intotable clause, etc.). These blueprints are extended and explained in more fine detail in Expanded DDL Syntax. Please find your Oracle operating system-specific documents for the syntax needed by your platform. If the field col2 is certainly an feature of a line object col1, when mentioning to coI2 in one óf the directives, yóu must make use of the notation col1.col2. Sqlldr Control File Nullif Full Name OfThe columnname ánd the fullfieldname réferencingnaming the exact same organization can end up being different because columnname in no way includes the full name of the enterprise (no dot notation). During immediate path tons, piecing is usually done instantly, therefore, it is definitely unwanted to indicate the PIECED keyword. Note furthermore that you cannot identify sqlstring for LOB fields (regardless of whether LOBFILEspec is specified). The chosen as component of the fieldlist must become the same as the preceding the keyword VARRAY. A position specification ( posspec ) provides the starting area for a field and, optionally, the ending location. Sqlldr Control File Nullif Plus An BalanceThe beginning place can become specified as a column amount, as (following column), or in (following column plus an balance). ![]() A field problem analyzes a called industry or an area of the record to a selected value. For example, a real condition might trigger the NULLIF functionality to put a NULL information worth, or cause DEFAULTIF to put in a default worth. The BLANKS keyword allows you to check a industry to discover if it is composed completely of blanks. ![]() There must not be any spaces between the owner and the operands. The column name you specify in a industry situation must become one of the columns defined for the insight record. It must be chosen with double quotation scars if its name will be a arranged phrase.
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