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11 paź 2020 · Example code below: DECLARE -- input PDF BLOB read handle pdf_file_handle BFILE; -- input PDF BLOB pdf_blob BLOB; -- output encrypted PDF BLOB encrypted_pdf_blob BLOB; -- PDF permissions and password user_password VARCHAR2(200); owner_password VARCHAR2(200); pdf_permissions INTEGER; BEGIN DBMS_LOB.createtemporary(pdf_blob, TRUE); pdf_file ...
12 wrz 2022 · Learn how to build conditional logic when writing SQL code using IF, BEGIN, END, ELSE, and ELSEIF logic.
SQL Handwritten Notes Repository: A collection of PDF notes covering SQL concepts with concise definitions and examples. Explore fundamental commands, date/time functions, joins, and more. Contributions welcome!
The IF...ELSE statement is a control-flow statement that allows you to execute or skip a statement block based on a specified condition. The IF statement. The following illustrates the syntax of the IF statement: IF boolean_expression . BEGIN . { statement_block } END Code language: SQL (Structured Query Language) (sql)
24 maj 2021 · The IF…ELSE structure will execute a certain block of code if a specified condition is TRUE, and a different block of code if that condition is FALSE. Here is the basic layout and syntax of the IF…ELSE structure: IF(<condition is true>) BEGIN <execute some code> END ELSE BEGIN <execute some different code> END
1 cze 2021 · Standard SQL Functions Cheat Sheet. TEXT FUNCTIONS. CONCATENATION. Use the || operator to concatenate two strings: SELECT 'Hi ' || 'there!'; -- result: Hi there! Remember that you can concatenate only character strings using. ||. Use this trick for numbers: SELECT '' || 4 || 2;
1 cze 2021 · Standard SQL Functions Cheat Sheet. TEXT FUNCTIONS. CONCATENATION. Use the || operator to concatenate two strings: SELECT 'Hi ' || 'there!'; -- result: Hi there! Remember that you can concatenate only character strings using. ||. Use this trick for numbers: SELECT '' || 4 || 2; -- result: 42.
