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Variables in DbVisualizer may be used anywhere in a statement as long as there is no data type specified. Note that none of the pre-defined variables below will show in the prompt window. These are replaced with actual values just before the SQL is sent to the DB server. scope=post The scope must be specified as post when using variables representing columns when exporting BLOB/CLOB values to separate files named based on column values.Ī few pre-defined DbVisualizer variables can be used anywhere in the SQL.A variable assigned the return value for a function must be declared as dir=out, and a variable used for a procedure parameter must use a dir type matching the procedure parameter direction declaration. dir=in | out | inout The direction for a variable used with the command (it is ignored for other uses).nobind Used in combination with when a type is set and defines that the variable should be replaced as a literal in the SQL rather than being bound as a parameter marker.A value must be set when using this option, unless it is an output variable (see dir below) noshow This option define that the variable should not appear in the prompt window.A symbol indicate this condition in the prompt window You can check the content of the DUAL table using the following syntax. It consists of exactly one column named dummy, and one record. where Defines that the variable is part of the WHERE clause. Dual is a table that is created by Oracle together with data dictionary.Represented with a symbol in the prompt window pk Indicates that the variable is part of the primary key in the final SQL.The options part is used to express certain conditions. If the PL/SQL routine is running in SQLPlus (or some similar environment) then you can use dbmsoutput.putline to prompt the user (that is, to send messages to the user). it doesnt have access to any interface on a client machine and therefore cannot prompt or display anything. If no type is specified, it is treated as a literal pl/sql is a process running on the database server. This is used to determine how the data should be passed between DbVisualizer and the database server. In addition DbVisualizer defines: BinaryData and TextData (for CLOB). The type of variable: String, Boolean, Integer, Float, Long, Double, BigDecimal, Date, Time and Timestamp. If multiple variables in a script have the same name, the substitution dialog shows only one and the entered value will be applied to all variables with that name This is the name that appear in the prompt window.