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The SQLinDS package [ver. 2.3.0]

The SQLinDS package is an implementation of the macro-function-sandwich concept introduced in the "Use the Full Power of SAS in Your Function-Style Macros", the article by Mike Rhoads (Westat, Rockville).

The article is available at: https://support.sas.com/resources/papers/proceedings12/004-2012.pdf

Copy of the article can also be found in additional content directory.

Package provides ability to execute SQL queries inside a data step, e.g.

  data class;
    set %SQL(select * from sashelp.class);
  run;

See the help for the %SQL() macro to find more examples.

Content

SQLinDS package contains the following components:

  1. %SQL() macro - the main package macro available for the User
  2. dsSQL() function (internal)
  3. %dsSQL_inner() macro (internal)
  4. Library DSSQL (created as a subdirectory of the WORK library)
  5. Optional KMF-abbreviations sqlinds

Package contains:

  1. libname dssql
  2. macro dssql_inner
  3. macro sql
  4. function dssql
  5. kmfsnip sqlinds

Required SAS Components: Base SAS Software

Package contains additional content, run: %loadPackageAddCnt(SQLinDS) to load it or look for the sqlinds_AdditionalContent directory in the Packages fileref localization (only if additional content was deployed during the installation process).

SAS package generated by generatePackage, version 20231111

The SHA256 hash digest for package SQLinDS: F*3C010734B76CA7459C4D35087C899121011CD4AA2932B56335FF11A805C8EF8D

Content description

>>> library dsSQL: <<<

The dsSQL library stores temporary views generated during the %SQL() macro execution.

If possible a subdirectory of the WORK location is created, like:

LIBNAME dsSQL BASE "%sysfunc(pathname(WORK))/dsSQLtmp";

if not possible, then redirects to the WORK location, like:

LIBNAME dsSQL BASE "%sysfunc(pathname(WORK))";

>>> %dsSQL_Inner() macro: <<<

Internal macro called by dsSQL() function. The macro generates a uniquely named SQL view on the fly which is then stored in the dsSQL library.

Recommended for SAS 9.3 and higher.

>>> %SQL() macro: <<<

The main macro which allows to use SQL queries in the data step.

Recommended for SAS 9.3 and higher.

Based on the article "Use the Full Power of SAS in Your Function-Style Macros" by Mike Rhoads (Westat, Rockville), available at: https://support.sas.com/resources/papers/proceedings12/004-2012.pdf

Copy of the article can also be found in additional content directory.

SYNTAX:

%sql(<nonempty sql querry code>)

The sql query code is limited to 32000 bytes.

EXAMPLES:

EXAMPLE 1: simple SQL query

data class_subset;
  set %SQL(select name, sex, height from sashelp.class where age > 12);
run;

EXAMPLE 2: query with dataset options

data renamed;
  set %SQL(select * from sashelp.class where sex = "F")(rename = (age=age2));
run;

EXAMPLE 3: dictionaries in the data step

data dictionary;
  set %SQL(select * from dictionary.macros);
run;

>>> dsSQL() function: <<<

Internal function called by the %SQL() macro. The function pass a query code from the %SQL() macro to the %dsSQL_Inner() internal macro.

Recommended for SAS 9.3 and higher.

SYNTAX:

dsSQL(unique_index_2, query)

Arguments description:

  1. unique_index_2 - Numeric, internal variable, a unique index for views.

  2. query - Character, internal variable, contains query text.

License

Copyright (c) 2012 Mike Rhoads

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.