Description
Plan a row-major VALUES placeholder grid with monotonically numbered $N tokens and next index; only placeholders, never interpolated caller SQL values.
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.
Plan a row-major VALUES placeholder grid with monotonically numbered $N tokens and next index; only placeholders, never interpolated caller SQL values.
When to use this tool
Use this tool to plan a row-major VALUES placeholder grid with monotonically numbered $N tokens and next index; only placeholders, never interpolated caller SQL values.
How to use the tool and how it works
- Enter rows, columns, first using the field definitions below.
- Run the operation. Correct input errors before interpreting an output.
- Read result.rows, result.next. Use the ordering, boundary rules and absence conditions described below.
Create rows of sequential dollar-number placeholders, beginning at first and advancing across columns before rows. Return the matrix and the next unused number.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| rows | Number of placeholder rows to generate. | A finite safe integer within the operation’s stated bounds. |
| columns | Positive number of placeholders per row. | A finite safe integer within the operation’s stated bounds. |
| first | First one-based dollar-placeholder index. | A finite safe integer within the operation’s stated bounds. |
| Output field | Interpretation |
|---|---|
| result | Object containing the named fields below. |
| result.rows | Row-major matrix of generated dollar-number placeholder tokens. |
| result.next | Next unused one-based placeholder index. |
{
"input": {
"rows": 2,
"columns": 2,
"first": 3
},
"output": {
"result": {
"rows": [
[
"$3",
"$4"
],
[
"$5",
"$6"
]
],
"next": 7
}
}
}Limitations and assumptions
- At most 128 placeholders are generated; this does not produce or execute a complete VALUES statement.
- 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 Identifier List Quote Plan
Plan literal identifier quoting for each explicit SQL name under double/backtick/bracket doubling rules; no keyword table, catalog identity or execution safety guarantee.
- SQL Named Placeholder Binding Coverage
Audit explicit placeholder-name versus binding-name coverage, unused bindings and duplicate binding names; does not inspect values or execute SQL.