Description
Restricted SQL single quote formatter using doubled closing quotes only; NUL rejects, no backslash mode, database execution or SQL-injection safety guarantee.
SQL identifiers, string literals and parameter placeholders serve different roles. Quote doubling can encode a single token in a selected dialect, while binding indexes connect placeholders to supplied values. These tools work with explicit tokens or lists; they do not connect to a database or parse an entire SQL program.
Restricted SQL single quote formatter using doubled closing quotes only; NUL rejects, no backslash mode, database execution or SQL-injection safety guarantee.
When to use this tool
Use this tool to format a single-quoted SQL string literal using the restricted doubled-closing-quote convention described below.
How to use the tool and how it works
- Enter value using the field definitions below.
- Run the operation. Correct input errors before interpreting an output.
- Read result.token. Use the ordering, boundary rules and absence conditions described below.
Double embedded single quotes and surround the supplied value with single quotes.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| value | Unquoted literal or identifier text to encode using the selected convention. | Text, at most 8,192 UTF-16 code units; the operation’s grammar also applies. |
| Output field | Interpretation |
|---|---|
| result | Object containing the named fields below. |
| result.token | Formatted single token, not a complete SQL statement. |
{
"input": {
"value": "a'b"
},
"output": {
"result": {
"token": "'a''b'"
}
}
}Limitations and assumptions
- Formatting a literal is not a substitute for parameter binding or validation of a complete query.
- Placeholder indexes are one-based when stated; occurrence positions and binding-list positions are zero-based. Supported quote styles are explicit local conventions rather than a promise of compatibility with every database dialect.
- Every declared top-level input field is required and unexpected fields are rejected. Ordinary strings are limited to 8,192 UTF-16 code units and lists to 128 entries, with tighter operation-specific bounds where stated. JSON text has bounded nesting and node counts.
- Numeric outputs must be finite and no larger in absolute magnitude than the safe-integer limit; operations returning exact large integers use decimal text. Positions are zero-based and spans end exclusively unless the operation explicitly states a different convention.
Alternative or Complementary methods
Use the database driver’s parameter binding for values and the target dialect’s identifier rules for names. Token formatting and occurrence audits are separate from execution, authorization and complete query validation.
References
Similar or alternative tools
- SQL Single Quote Literal Parser
Restricted SQL single quote parser using doubled closing quotes only; NUL rejects, no backslash mode, database execution or SQL-injection safety guarantee.
- SQL Double Quote Identifier Formatter
Restricted SQL double quote formatter using doubled closing quotes only; NUL rejects, no backslash mode, database execution or SQL-injection safety guarantee.